1.Filled with Iron: This wrist weight bag filled with iron sand particles which can be easily worn on the wrist and ankle and it is beneficial for strength training. 2.Improving Your Exercise Durability: Wearing this strength training ankle weights, you can exercise with weight to improve durability during exercise. 3.Soft Fabric: The wrist sandbag is lined with a soft fabric that is soothing to the skin and fastened by an outer loop strap, which can stabilize the ankle even when running. 4.Invisible: This invisible wrist weight is an invisible sandbag, which looks like a wristband when worn on the wrist or ankle, and will not affect your appearance. 5.Widely Applicable: This wrist weights straps can be used by all people who need physical training, children, women or men can use it. Item Type: Wrist Ankle Weights Gross Weight: 1010g/35.6oz Material: Composite diving fabric, iron sand 1 Pair x Wrist Ankle Weights