Dog Disc (Fastback) Summer use, set of 10. Although there are misprints, the disc itself is a genuine product made by D.T.W. Diameter: 23.5cm Color: Marble, set of 10 *The color pattern of each marble disc is different. These are for summer use. They may be more prone to cracking in cold weather, so please be careful. If used for throwing practice or during the warmer part of the day, they are less likely to crack. 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 this. They will be shipped directly in a cardboard box. Also, I have pets, so please be cautious if you have allergies or are overly sensitive. Thank you.