PlanToys set consists of 5 bowls and 15 coin chips. Each bowl measures 3.3 x 3.3 x 1.4 and is made from PlanToys unique wood composite called PlanWood. The 15 coin chips are made from natural rubber wood in Thailand. Organic pigments, water based dyes, and non-toxic glues are used. Great open ended toy for teaching colors, matching, stacking, filling and emptying, and so much more.