Enjoy wonderful exercise times with our 4-in-1 boxing speed trainer!Consisting of 2 speed balls, 1 spinning bar and 1 boxing bag, this multifunctional boxing equipment offers you various options. The high quality springs well train your accuracy and agility. Moreover, the 6-position adjustable height enables it to fit people of different heights. The high-strength materials promise a long-lasting use. And the widened base with suction cups can be filled with sand or water in order to enhance stability. Moreover, the boxing stand bag is specially designed with a shock and noise absorbing system, providing you ultimate boxing experience without disturbing other people.