Unlike other Knetplasten this for months remains kneadable and therefore always happy game used items. Over time and with frequent use - I had earlier times bought a package - mix Although the colors in a nondescript gray matter what, however, the kneading ability not INFLUENCED buy then stop from time to time to färbige. I would recommend Neukäufern the acquisition of at least two packs since the amount of a pack, now experience has shown, is used up quickly, but the kids want to shape without destroying their creations. Would recommend with a clear conscience on this product.