The Fitpaws Canine Conditioning Peanut kit contains: FitPaws Red Peanut 50cm, hand pump and training DVD. The FitPaws peanut is a peanut shaped stability ball designed for canine core conditioning and rehabilitation. The professional grade, heavy duty PVC material is formulated for use with dogs providing superior gripping and resists damage caused by dogs nails. It is used for core strengthening of sporting and working dogs as well as for animal rehabilitation and therapy. The unique shape of the peanut limits its movements for front/back or side/side, important for dogs new to this type of training. You can also adjust the balance challenge by under-inflating the ball so that it is not as firm. Easily inflates with hand-held air pump.