Toney Bands are the ingenious new way to help burn calories and tone up while you do your everyday activities. The soft silicone band has removable weights to tailor the resistance to your needs. As you get stronger, add more weight, up to 1 lb. each wrist. Sleek design stays put and won't get in your way. Durable, waterproof silicone band wipes clean. Fits wrist 5.5" to 9.5".