Children can experiment with various versions of pyramid making with these 100 wooden pieces. They can either separate them and build in a spiral or put them close together for a more traditional design. Of course, kids can also build other structures just by using their imagination. The size of each piece varies from 4cm up to 20cm high. Combine with wooden play mats (GM40360 – sold separately) and build bases, floors and roofs. Ages 4+ years.