Giant magnetic building blocks turn any playroom, gymnasium, or amusement park into an open-ended construction zone, and the JollyHeap Crazy Set is built for exactly that kind of large-scale, collaborative fun. With 700 soft magnetic blocks across four shapes, it's designed for groups of 12 to 20 children building side by side, making it a natural fit for schools, daycares, amusement parks, and soft play businesses across North America.
The set includes 532 cubes, 56 truncated cubes, 84 triangles, and 28 pyramids, each one embroidered to show its magnetic pole so builders always know which pieces will connect.
- Four Block Shapes for Endless Structures - The combination of cubes, truncated cubes, triangles, and pyramids gives builders far more geometric range than a single-shape set, so towers, tunnels, ramps, and creatures can all take shape from the same box.
- Magnetic Pole Connection System - Every block connects through opposite magnetic poles rather than loose stacking, so structures hold together securely even as a large group adds pieces at the same time, which keeps the building experience smooth instead of frustrating.
- 36 Colour Combinations - A wide colour range means builders can sort, pattern, and design with intention, turning a simple stacking session into a visual and creative exercise.
- 15,372 Total Magnets - This is a genuinely industrial-scale magnetic system, giving the set enough holding power to support the ambitious, room-filling structures that large groups tend to build.
- Compact Fold-Down Storage - Despite its scale, the full set folds down to just 1.2 cubic metres, so schools and play centres can pack it away between sessions without dedicating a permanent storage room to it.
- Builds Structures Several Metres High - Arranged as a wall, the set's blocks reach 120 by 840 centimetres, giving a sense of just how large the finished creations can get when a full class or group works together.
Beyond the raw scale, this is a set built for cooperative, imaginative construction. Groups have used it to build turtles, race cars, dinosaurs, bulldozers, octopi, and entire imagined landscapes, and because the blocks are open-ended, no two builds ever look the same. That kind of large-group, hands-on construction naturally supports gross motor coordination as children lift, carry, and place oversized pieces, along with the social and cognitive skills that come from planning and problem-solving as a team.
Ideal for
- Schools and daycares building a shared classroom or gymnasium construction zone
- Amusement parks and soft play businesses adding a signature large-format attraction
- Occupational therapy and physiotherapy settings using large-scale building for gross motor and coordination work
- Families with the space for an ambitious, room-filling building project