The Dogtra YELLOW TRAINING BALL is a durable dog training tool that was designed for a wide range of dog breeds. Built to be rugged, sturdy and multi-purposeful, this YELLOW TRAINING BALL may be used for a variety of training, retrieving, and playtime activities for a wide range of dog breeds. This ball has a non-toxic coating allowing for safe training and playtime. The YELLOW TRAINING BALL set includes (6) training balls total.