Grimms Stacking Game Small Natural RollersWooden beads are one of the most basic play materials for children. While threading, the eye hand coordination is stimulated and fine motor skills are trained. This colourful wooden beads are sorted with 12 rainbow colours. Ideal storage: the Sorting Helper (Art. No 10299) sort and keep all the coloured wooden beads from our standard offering. 60 wooden beads. Materials: maple wood, non toxic water based color stain. Size: diameter 20mm.