Valued Set You will receive a set of 8 double end bags, including 2 ring locks, 1 multipurpose air pump with 2 inflating needles, 1 speed ball, and 2 super elastic ropes. The double end bag measures 12"H x 7.8"D. Thoughtful Design The speed bag is connected with super elastic and durable ropes at both ends, providing excellent ductility. Once inflated with the air pump, the punching bag can be easily installed, allowing you to start your punch training quickly. Universal Application Our professional punching bag is suitable for various types of training, including mixed martial arts, boxing, dodge training, and reflectivity training. It is also ideal for MMA, Muay Thai, and other punching exercises. The rope is elastic, ensures quick installation in gyms and homes. Safe To Use Featured with smooth surface, even if the use of bare hand punching will not be injured. The stitching is delicate and fine, and the air vent is inserted into the ball without protruding. Additionally, the ball body does not contain any foreign objects, allowing you to hit the ball without boxing gloves without the risk of injury.