Blocks Geometrical, Natural 60 pcs.60 classic geometrical blocks come in a 3 different thicknesses 1 cm, 2 cm and 4 cm thickness. From easy to challenging, these building block sets are a constant companion throughout childhood! Packaged in natural coloured net bag. Made using European sourced FSC certified wood. Grimm's blocks are non toxic, finished with natural linseed that is absolutely harmless DAMAGES & CARE OF WOOD: If you clean Grimms wood products only use a damp cloth. Do NOT