Improve kids manual and fine motor skills skills by having fun free building with Magicube Preschool 64pcs pack !\nThese colourful blocks have magnets in the blocks so you can build fun and imaginitive 3D models with the colourul blocks with each side showing a different colour !\n\nThese cubes are fully compatible with all other Magicubes and each block is 1.5 x 1.5 x 1.5 inches.