TUKI Big Magnetic Foam Blocks - Smart 340 is the largest set in the Smart line - a 340-element large-format magnetic building set available now across Canada & the US at The Sensory Supply. Built for the biggest group sessions, the most ambitious play environments, and the highest-traffic commercial spaces, the Smart 340 is the right choice when the space is large, the group is sizeable, and the equipment needs to match both. Recommended for groups of 20 to 26 children, it is the flagship of the TUKI Big series.

Each block is made from lightweight closed-cell EVA foam and houses a rotating neodymium magnet capsule that ensures pieces always attract, never repel. Four colours - turquoise, grey, yellow, and pink - are distributed roughly equally across the 340 elements, giving large groups the volume to fill a full gym floor, a hotel play zone, or a multi-station therapy session with structured, engaging construction activity. The Smart line's wider shape range, including cubes, truncated cubes, triangles, and diamonds, opens up more structurally detailed and imaginative builds than the standard Builder sets - and at 340 elements, the creative and therapeutic possibilities scale accordingly.

One practical note that matters for institutional buyers: the Smart 340 is the only set in the range that includes two storage bags, making it straightforward to organise, transport, and pack down 340 blocks after every session.

Key Features of the TUKI Big Magnetic Blocks Smart 340

• Neodymium Rotating Magnet Capsules - Magnets rotate freely inside each sealed capsule so blocks attract from any angle, making construction intuitive and stable for children at every developmental stage and ability level
• Closed-Cell EVA Foam Construction - Each block is crafted from soft, lightweight, waterproof foam that doesn't absorb moisture, so surfaces wipe clean in seconds and disinfect thoroughly between uses - essential for the high-traffic public and institutional venues this set is built for
• Waterproof and Fully Floatable - Blocks float on water, extending play from the classroom, therapy room, or venue to the bath, pool, or outdoor spaces without any risk of damage to the blocks or their magnetic capsules
• Smart Line Shape Range - This set includes the full Smart series variety - cubes, truncated cubes, triangles, and diamonds - supporting more detailed and structurally complex builds than Builder-line sets
• 340 Elements in Four Colours - Turquoise, grey, yellow, and pink blocks are distributed roughly equally across 340 pieces, giving groups of 20 to 26 children the material to build simultaneously across multiple zones, movement paths, and collaborative constructions
• Fully Modular - Combines with All TUKI Sets - Smart and Builder blocks are universally compatible, so this set merges seamlessly with any existing TUKI collection to expand a building environment without limit
• EN71-Certified, Non-Toxic, BPA-Free - Tested at an accredited research centre covering heavy metal migration, flammability, and mechanical safety; meets European EN71-1, EN71-2, and EN71-3 standards for professional institutional, public venue, and therapeutic use
• Child Safe, Accredited Testing - Safety testing covered element migration including heavy metals, non-flammability, and the mechanical safety of toys
• Made to Fit - Every block is designed with exact modularity so elements connect universally regardless of which TUKI line or set they come from
• Light Weight - Individual blocks are easily lifted and handled by even the smallest set of hands, keeping participation fully accessible for children of all ages and abilities across large mixed groups
• 2 Durable Storage Bags Included - Unlike smaller sets in the Smart range, the Smart 340 comes with two purpose-designed storage bags, making it practical to organise, transport, and store 340 blocks between sessions at high-frequency venues
• European Made - Designed and manufactured in Poland; laureate of Poland's "Toy of the Year 2023" award

Skills and Development Supported Through TUKI Building Play

• Fine Motor Skills - Gripping, placing, and connecting blocks of this size develops precise hand and finger control, supporting the dexterity children rely on for daily tasks and learning activities
• Gross Motor Coordination - Reaching, lifting, and repositioning large foam blocks through space engages the whole body, building cross-body movement patterns and physical coordination essential for sensory and motor development programs
• Tactile Discrimination - The smooth, soft EVA foam surface provides consistent tactile input, supporting sensory exploration and tactile discrimination through hands-on handling of varied shapes and sizes
• Spatial Reasoning & Cognition - Planning and executing builds with a range of three-dimensional shapes develops spatial logic, problem-solving, and the executive function that transfers directly into academic and real-world performance
• Social Communication & Teamwork - Building at this scale across a group of up to 26 children creates organic conditions for negotiation, resource-sharing, and communication - the social skills that matter most in large group environments
• Creative Thinking & Imagination - Open-ended construction with 340 elements across multiple shapes provides the scope for full-room architectural play, immersive themed environments, and collaborative builds of a scale not possible with smaller sets

Best Settings for the TUKI Smart 340

The Smart 340 is the top of the Smart range and is calibrated for environments where maximum capacity and durability are the primary requirements. With 340 blocks, two storage bags, and a recommended group size of 20 to 26 children, it is the right choice for:

• Large school gyms and open-plan classrooms running full-class motor or sensory building sessions
• Indoor playgrounds, trampoline parks, family entertainment centres, and hotel kids' clubs requiring professional-grade commercial play equipment
• Occupational therapy centres and rehabilitation facilities running high-capacity multi-client group sessions
• Children's hospitals and paediatric wards needing engaging, easily disinfected, EN71-certified sensory building equipment
• Shopping centre play areas, airport terminals, event spaces, and public venues with daily intensive use by large numbers of children
• Montessori and progressive education settings building full-room construction and collaborative learning environments
• Institutions requiring procurement documentation - EN71 certifications and full specifications are available on request

Therapeutic and Developmental Context

For occupational therapists and educators working in sensory integration, the physical experience of handling and connecting these large foam pieces delivers meaningful proprioceptive and tactile feedback. The blocks resist and respond in ways that engage the body alongside the mind - a quality that makes the Smart 340 a practical tool within sensory diets and motor development programs, not simply a building set.

At 340 elements, the Smart 340 creates the conditions for true full-room therapeutic environments. Therapists can design movement paths that span an entire gym floor, multi-station construction tasks that run simultaneously across 20 or more children, and cooperative group exercises that address sensory, motor, and social goals within a single structured session - a level of programmatic flexibility that no smaller set in the range can match.

Ideal for

• Large schools, daycares, and Montessori classrooms running full-class group learning environments
• Indoor playgrounds, hotel kids' clubs, family entertainment venues, and commercial play spaces requiring maximum-capacity building equipment
• Occupational therapy centres and allied health facilities supporting motor and sensory development programs across large multi-client group sessions
• Children's hospitals, rehabilitation centres, and paediatric sensory rooms requiring durable, hygienic, EN71-certified equipment built for intensive institutional use
• Event organisers and family entertainment venues running structured or free-play sessions for groups of 20 or more
• Procurement teams and institutional buyers requiring a complete, documented set at the top of the TUKI range
• Neurotypical and neurodiverse children of all abilities, from toddlers to older builders, across large mixed-age and mixed-ability groups
• Families who want the most complete Smart line set, available across North America

• Single block: 10×10×10 cm
• Set/packaging: 70 x 70 x 60 cm
• Weight: 37kg
• Colours: Turquoise, Grey, Yellow, Pink (distributed roughly equally)
• Material: Closed-cell EVA foam with sealed neodymium rotating magnet capsules