1-8kg Adjustable Leg Ankle Weights Straps Strength Training Exercise Fitness Equipment For Running Basketball FootballFeatures:This leg weight is adjustable with 6 bags for Sand and Steel Board(every bag for 3 steel boards and every steel board is about 0.22 kg ( not included ) )， so you can work your way up to 8kg in increasements This leg weight is great for training， runners， sports training and anyone else looking to add resistance to their workout This leg weight is adapt the newest composite material， with its novel design， beautiful shape， bright colors， safety and comfortable to wear， convenient to use， so this would be your best choice. Specifications:Material: 1680 Tendon canvas Color: Black Package included: 2 pieces ( 1 pair ) of Sand Wrist Weight Notice: The 8kg weights is not included， you should put sand or steel boards into it by yourself， the sand and steel boards is not included， please pay attention to this tip， thank you.