Specifications: Material: Silicone Clasp: stainless steel Long Strap: 115mm Short Strap: 70mm (excluding clasp) Strap Width: 22mm : Black And Yellow, Black And Red, Black And Orange Features: Softness is moderate, waterproof and sweat, sturdy and durable, wear very comfortable. Safe environmental silicone material, clasp was stainless steel, safety and environmental protection. Resistant to wear, high temperature, , non-deformation, non-toxic, tasteless, no side effects on the human body, long life and characteristics. The size can be adjusted according to the circumstance of individual wrist. a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a