High quality wrist and ankle weights. Product is great for pilates exercises, jogging, aerobics or gymnastics. Weights will help you on your way to perfect body. They have velcro-type fastening. Parameters: Material: neoprene, steel pellet Weight: 2 x 3 kilograms Certificate: CE standard Original Colour by Producer: BlackColour: BlackMade in: ChinaMaterial: NeoprenePackage Quantity (pcs): 2Weight: 3 kgNet Weight (kg): 3.0