After training with a teasing tug and a bite tug the size of the tool used as prey can be increased. After and in addition to a wide range of bite wedges, the JULIUS-K9 puppy sleeve (extra flexible bite wedge equipped with a shoulder protector) developed in 2015 can be an ideal reward for your 6-8-month-old dog. Wearing it, in addition to maximum comfort, allows the trainer to perform playful, tug-of-war, sleeve like training, or when held by the wooden handle, "swinging" training. Due to its inner plastic reinforcement the sleeve is super lightweight, and at the same time amazingly stable and bite-proof. It is available with a cover made of JULIUS-K9 cotton-nylon or jute fabric. The size of the prey is increased for the dog by the shoulder protector made of a soft material as an extension of the material of the sleeve. Neither the weight, nor the size of the sleeve poses a problem for the dog carrying the seized prey as a reward. Its weight distribution is symmetrical, encouraging the dog to grab, hold it at the middle.