Naimo 455Pcs Particles Blocks Diamond Block Mini Nutcracker Soldiers Micro Blocks Construction Model Building Bock Set A 3D work of art that fits in the palm of your hand, create details with assorted sizes and colored pieces Architecture Building kit, Mini Brick Pieces Play Set All blocks are made of high quality original ABS material.Smooth edge of each block will never hurt baby's little hands Micro size building blocks, come with step by step assembly instruction in original box Recommended for ages 9 years and up