Grimm's | Giant Geometrical Stack TowerThe Giant Grimms Geometric stacking tower, is a giant stack of 12 different geometric disks of graduated diameters. From triangle to polygon, children can sort and stack forms and colours and build with the discs. A stunning tactile tool for developing hand eye coordination, fine motor skills and understanding all the different geometric shapes in a hands on way. Comprises 11 coloured wooden discs on a central pole. Materials: lime wood, non toxic