The HOMCOM boxing ball set is the best choice for boxing fans and bodybuilders to exercise at home or gym, it can improve your hand and eye coordination, reflexes and footwork. Sturdy base and strong suction cup makes it has a excellent stability. 4 heights make it flexible enough to fit most people.Features: - Includes the main boxing ball, a pair of gloves to protect hands and an inflator - The height of support bar can be adjusted from 133 cm to 151 cm to suit personal preferences - The base weight with suction cup stand up to high impaction without deformation- The base weight is 16.5kg when filled with water, 33kg with sand, or 25kg when filled with sand and water - Suitable for both adults and teens from age 10 years and up - 360° rebound function exercise reaction speed- Assembly required