2pcs/pair 5kg Adjustable Hand Wrist Weights Exercise Fitness Boxing Training Equipment Features:This wrist weight is adjustable with 5 bags for Sand and Steel Board(every bag for 3 steel boards and every steel board is about 0.46 kg ( not included ) )， so you can work your way up to 6.9kg in increasementsThis wrist weight is great for military/police training， runners， sports training and anyone else looking to add resistance to their workoutThis wrist 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 canvasColor: Black Package included:2pieces/1pair Sand Wrist Weight Notice: The vest weight is empty， 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!