Flexible, comfortable Powergloves can be added to any workout to accelerate fat-burning while sculpting and toning arms. Powergloves stay secure and leave fingers and palms free for just about any activity, such as walking, jogging, housework, kickboxing, and especially, Powerhooping! Adjustable Powergloves allow beginners to build arm strength with a basic weight of 250g (just over 1/2 lb) per glove and increase the weight gradually to 600g (1.3 lbs) per glove, to reduce the risk of strain or discomfort in new users. Note: If you have had an arm or shoulder injury, please do not use Powergloves without first consulting a medical professional.