1. Size: 190*90mm 2. Weight: 73g 3. Arm circumference: 14-38 cm (adjustable at will) 4. Material: nylon 5. It has waterproof function and good air permeability. 6. Wear comfortably, lightly and without shaking. 7. Good quality and durability 8. Suitable for a variety of sports, such as running, yoga, cycling, etc.
