These robust wooden rollers are ideal for use with clay & modeling sand, for example. With these unique rollers, it's extra fun and challenging for a child to use their imagination. You can connect shapes or combine different rollers in a fun way. Endless playtime fun in combination with the stamps & wooden play box or craft board! Size: 12 cm Note! This is a product made from natural material, so the pattern on the wood and the shade of the wood may differ from the image. The rollers are not suitable for magnetic sand, only for modeling/play sand! Cleaning: You can wipe the rollers with a slightly damp cloth after playing to remove any remaining clay. Sand can be easily brushed off the roller. This way, they are clean and tidy for the next round.