Description: 【Construction】: Crafted from quality silicone and metal, these weighted wristbands are designed to withstand rigorous activities, The materials ensure a skin friendly while being waterproof and sweat resistant, making them ideal for various sports 【Stylish and Adjustable Design】: Featuring a fashionable design, these wristbands are not only functional but also stylish, They come with an adjustable elastic band that fit a wide range of wrist sizes comfortable 【Built in Steel Weight】: These wristband includes built in steel weight that add resistance to your workouts, Whether you're swimming, running, or playing soccer, these bands help enhance your performance by adding extra weight 【Versatile Use for Multiple Activities】: Great for swimming as they not slip off in water, these wristbands can be worn individually or stacked to increase the weight as needed, They are suitable for both children and adults in various sports activities 【Compact Size 】: Measuring 3.2cmx2.4cmx9cm/1.26inchx0.94inchx3.54inch per band (6.4cmx2.4cmx9cm/2.52inchx0.94inchx3.54inch per pair), these lightweight bands are easy to carry around and store when not in use Specification: Material: Silicone, Steel   Size Chart: Single: 3.2cmx2.4cmx9cm/1.26inchx0.94inchx3.54inch Double: 6.4cmx2.4cmx9cm/2.52inchx0.94inchx3.54inch Package Includes: 1 Pair Ankle Wrist Weights Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 1-3mm differences due to manual measurement.