1. SUPER DURABLE We use the quality, incredibly durable jute exterior along with a thick foam inner layer to provide a K9 bite sleeve that is soft for your dog's teeth and protects you from hard bites. 2. RECOMMENDED BY DOG TRAINERS This biting sleeve is a reward toy and training tool designed for interactive play and K9, protection dog, and guard dog training! It is trusted by dog trainers in the military and police fields. 3. COMFORTABLE AND DURABLE HANDLES Our dog training sleeve features a comfortable grip, a sturdy inner handle, and an outer handle. The handles maximize your control of the equipment while optimizing bite training. It can be used on either the left or right arm. 4. SIZE 52 x 30 cm (20 x 12 inches) The bite sleeve provides ample space for dogs to bite, helping to avoid accidental bites and allowing you to train your dog without fear. It is ideal for large puppies and adult medium to large breeds such as German Shepherds, Belgian Malinois, Rottweilers, Pitbulls, etc.