Product Description:Material: Spandex + NeopreneSize: 50*16cmStyle: blue coating, silver coating Colour: blue, silverQuantity: 1 pair Package Content: 2 * Arm Strap Upgraded Sweatbands: The arm exerciser bands are made of heat-retaining polymer fabric, you can warm up your arms to increase biceps and triceps temperature in a short time, give you a boost and You will sweat and burn more calories.Adjustable Wristband: The sauna wristbands are very light and easy to wear. An adjustable belt lets you adjust it tighter or looser depending on how you wear it. This is very helpful when you are losing weight or toning your arms.Say goodbye to your flabby arms: The arm trimmers are sweat-absorbent, breathable, durable, thermal and stretchy in physical performance.SUITABLE FOR INDOOR AND OUTDOOR ACTIVITIES: Whether you are at home, at work or at the gym, this arm slimmer is comfortable all day long. Wear the bracelets around the house with easy cleaning, you will find that you sweat more.