Fitness Mad neoprene wrist and ankle weights can help to increase the intensity of your workout, allowing you to incrementally build your strength, endurance as well as improve muscle tone and aid weight loss. Great for using while; walking, jogging, running, sprinting, during aerobics, cycling, kickboxing, and even treadmill training, or as part of your regular workout. Made from neoprene material which is breathable for a more comfortable fit and filled with iron sand. Velcro attachment with metal D-ring. It can be wiped clean with a damp cloth.