This colorful flying disk set can be played in indoor, yard, park, swimming pool, barbecue, beach, camping trip. You can use it for outdoor game, sports parties and play training game with your dog. 100% soft silicone, safe and environmental protection, reusable, not easy to damage, wear-resistant and durable, will not harm pet teeth. It won't hurt a child, and its light weight and silicone material will allow it to fly farther without causing any damage. 7" D x 1/8" H