The Hit Fitness Power Bands | 4 Pack can be added to any form of training programme to increase the resistance of exercises. Exercises such as squats, lunges, push-ups, deadlifts or bench presses benefit significantly from the use of power bands What's included Hit Fitness Power Band | 21mm (Black) Hit Fitness Power Band | 32mm (Purple) Hit Fitness Power Band | 64mm (Blue) Hit Fitness Power Band | 83mm (Orange) Power bands are used to increase the resistance and intensity of exercises such as squats and deadlifts. Power bands can be used for a number of purposes. Power bands are commonly used for strength and power training, speed and agility training, jumping and plyometric exercises, flexibility and joint mobility. Power bands are also commonly used by athletes to add resistance to certain bodyweight movements in order to increase the speed at which they can perform that movement and get improved results on speed tests. Specifications Made from 100% seamless latex and will stretch safely. The Thickness of the band determines strength of resistance. Can be used in conjunction with the majority of exercise equipment as well as Olympic, Hex and EZ Bars.