WHAT ARE THESE BLOCKS: These are 3D micro building blocks, with their amazing detailed designs and fun building process, these are one of the most trendy novelty DIY building blocks nowadays. With their high quality, playability and durability, these are not only educational toys for kids, but also stress relief toys for adults, can also be special gifts and artistic collection. HIGH QUALITY OF MINI BLOCKS: 5000 ABS Mini Bricks - These DIY building blocks are made of environmental-friendly food-level safe, non-toxic, non-smell top ABS plastic material, healthy & safe for kids and adults. HIGH DURABILITY: These are 3D micro building blocks, smaller than traditional size block, with diameter 0.7-0.8cm, which can give more original blocks and specific details, with stronger bite and better compactness which can also make your builds more stable & sturdy. COLLECTION & DECORATION: With the exquisite designs and beautiful details, our blocks are more than just DIY projects, they are also wonderful 3D art collection and display craft in your home, additional artistic decoration to your room. CREATIVE DESIGN: Mechanical Bear Design - Comes with guidebook & packaging for a special seasonal surprise. Enjoy this wonderful building journey with us ! Building Blocks