Magformers 30 Piece basic line set has what you need to get children started with this magnetic building system. Square and triangular pieces stick together with slight magnetic attraction that allows children to easily assemble and disassemble their creations. Compatible with all other Magformers kits. original maformers brand Ages 3 . Features Pieces join together via magnets A variety of translucent colors Fun for children of varying abilities Skill Building Large pieces are easy for small hands to manipulate. Children will build fine motor skills and a delicate touch while assembling Magformers models. Triangle pieces will allow children to create angular models that will expand their visual and spatial perception. Magnetic pieces join and separate easily, so children of all abilities can play together. see video below