Dog Disc (Fastback) Summer Use - Set of 10 Very cute marble colors!! Although there are some misprints, the disc itself is a genuine product made by D.T.W. Diameter: 23.5cm Colors: Marble, 10 discs *The marble pattern varies for each disc, so there are individual differences. Please understand. These are for summer use. They are more prone to cracking in cold weather, so please be careful. The probability of cracking is low if used during the warm daytime hours or only for throwing practice. Although new and unused, there may be minor scratches or warping from storage. These are items stored at home by an amateur, so please purchase only if you understand. They will be shipped directly in a cardboard box. Also, I have pets, so please be careful if you have allergies or are overly sensitive. Thank you.