An improved rubber medicine ball design from Champion barbell the Reactor series set of rubberized medicine balls is both durable and weather resistant. The Textured cover has been designed for greater safety and comfort. Each medicine ball is air filled to allow for a limited range of bounce and enables the user to perform additional explosive movements; while protecting your floor and equipment. Color coordinated this set is perfect for trainers home gyms or commercial facilities.Features:Textured rubber cover makes them easy to grip and toss  Air filled with limited bounce  Weather resistantColorization makes identification easySet includes:1 kg (2.2 lb) Lt. Blue2 kg (4.4 lb) Red3 kg (6.6 lb) Yellow4 kg (8.8 lb) Royal blue5 kg (11 lb) Orange6 kg (13.2 lb) Green7 kg (15.4 lb) Purple*Set has 7 medicine balls total.