Comfortable wristbands for your fitness and circuit training exercises The wristbands offered here are high quality and offer you optimum comfort. The Velcro fastening makes them easy to attach to wrists or ankles. Each wristband also has a hole for your thumb to pass through for better wrist support. 4 pairs are currently available, according to their weight range:2 x 0.5 KG - 2 x 1 KG - 2 x 1.5 KG - 2 x 2KG The bracelets in detail:The pair of 2 x 0.5 kilograms: 36 cm long and 7 cm wide. Pair of 2 x 1 kilograms: 38 cm long and 8 cm wide. The pair of 2 x 1.5 kilograms: 41 cm long and 9 cm wide. Pair of 2 x 2 kilograms: 45.5 cm long and 10 cm wide. Practical Velcro fastening. Hole. Weight and logo printed on each bracelet. Steel ballast. Sturdy polyester coating. How to use your wristbands / armbands? There are many exercises where it's useful to "artificially" increase your own body weight. If you want to train your biceps or build up your thighs in ways other than using weights, these accessories will enable you to train freely while jogging, or during gymnastics, yoga or Pilates sessions. The armbands can be worn directly against the skin or over your sportswear. The Velcro fastening makes them easy to adjust. Each armband also has a hole for your thumb to pass through for better wrist support.