Customers have requested the Dumbbell Trainer to aid in training, and now it's available! This durable trainer with tough Nylon material is perfect for teaching young dogs to hold properly. The thinner part of the dummy promotes correct holding techniques. It is also lightweight for novice dogs to easily pick up and hold, and floats for water retrieves. With a medium size of approximately 3.5 inches in width and a weight of 265g, this product is designed to aid in training, just like all of the other products we offer.