Roller

A roller is a disc that is rolled along the ground like the wheel of a car. It bounces as it rolls, tends to trigger prey drive in most dogs. To throw a roller hold the disc in your hand like a normal backhand throw, but turn your palm up so the rim of the disc points to the ground and the sky. Flick the disc out about 5-10 feet in front of you, make sure to get it spinning well. The more spin the better and longer it will roll.