For bite training of the dogs transitioning from puppies to young dogs.The cover is made of imported jute that is very tough, which is better to bite over. The bite area is appropriately designed.The sponge handle inside the sleeve is properly fixed, which makes the sleeve comfortable to use.The sleeve is perfect for training working young dogs and helps lay the foundation for future bite training of adult dogs. Suitable for dogs from 4 to 7 months adjusting their bites.