Wonderfully tactile and versatile construction pieces. Increase construction options with the help of the wooden coins, by combining with the large and small stacking rolls (10172, 10574). Diameter 30/40 mm, height 10 mm. 24 pieces. DAMAGES & CARE OF WOOD: If you clean Grimms wood products only use a damp cloth. Do NOT submerge in water. Do NOT use hot water or disinfectant. Recommended for ages 3+ (Warning! CHOKING HAZARD - Small parts. Not for children under 3)