1、Explosion-proof and high elastic PU leather is durable, crack and wrinkle-resistant, and handmade stitching makes it feel more comfortable when hitting. Coarse high elastic pull rope, thick, strong extension, not easy to break. 2、Environmental friendly and convenient, tight air nozzle design, easy to inflate, avoid leakage, full inflating elastic, good in use; Exercise endurance, enhance the body reaction, improve response, relieve pressure, easy fitness. 3、Whether you are a professional athlete or an amateur boxing fan, it can provide faster rebound and is the ideal choice for most users. Have fun during a strenuous workout. For boxing training, it is necessary to improve the boxer's comprehensive ability of hitting speed, accuracy, reaction speed and so on. 4、The elastic rope allows the air pump to swing from side to side when hit, so you can master your reaction ability and timing skills. 5、It is durable, sturdy and elastic, providing a longer service life, affordable yet desirable.