This water heavy bag is perfect to practice cross hook, uppercut and various boxing combinations. The heavy bag will fight back in a straight line and an arc, which helps you to improve reaction speed. The weight can be freely adjusted by adding and removing water. And the package comes with a water injector with hose. Filled with water, this boxing bag can effectively absorb heavy punches and noise. Made of high quality PVC material, the water punching bag is durable for long service life. The installation is easy with step-by-step instruction and included hardware. You can mount the water punching to the ceiling, wall, and punching bag stand. Bullet Point: Perfect for Boxing Practice: Featuring great flexibility, the water punching bag gives more feedback to your punches, which allows you to practice cross hook, uppercut, various combinations, head movement and more. The weight can be added up to 110 lbs and you can adjust the weight according to your need. Realistic and Comfy Hand