Dog Disc (Fastback) Super Flex (for winter) - Set of 10. Although there is a misprint, the disc itself is a genuine product made by D.T.W. Diameter: 23.5cm Colors: Light Blue (5) / Light Yellow (5) This disc doesn't harden in winter and is less likely to break. It's made softer than the summer version, so it's also recommended for dogs with weak biting strength and puppies. Although it is new and unused, there may be minor scratches and warping from storage. Please understand that this is a home-stored item, so please purchase only if you can accept this. It 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.