Set of 4 different colors of clay with a total of 1000 grams. Packed as a block in a transparent bucket of 13 x 13 cm. Weible Knet has been a high quality, natural quality product from Germany for over 100 years. It does not have the ability to dry out and will not become hard. The clay can therefore be used without problems for years. The product is 100% natural and gluten free so that there is no risk for children connected to this clay. Weible Knet is made from potato starch and beeswax, the dyes come from the food industry so that the clay is only colored with natural dyes. Weible Knet is the best choice for your child / children.