Features: The size can be adjusted according to the circumstance of individual wrist 1.MAX:200 2.MIN: 150 mm 3. Long belt length: 135 mm 4. Short belt length 95 mm 5. Bandwidth: 20 mm 6. Material: Made of high quality silicone, healthy and environmentally friendly 7.buckle: 316L stainless steel Compression molding, sturdy and durable Material: Silicone Softness is moderate, wear very comfortable Easy to adjust the length to fit your wrist Models for selection:For Samsung Galaxy Watch active compatible：20MM Band ★ Fit for Samsung Galaxy Watch 42mm ★ Fit for Gear Sport SM-R600 ★ Fit for Gear S2 Classic SM-R732 & SM-R735 (BUT NOT fit for Gear S2 SM-R720 & SM-R730) ★ Fit for Ticwatch 2, Garmin vivoactive 3/3 music ★ Fit for Huami Amazfit Bip Youth ★ Fit for Huawei Watch 2 ★ Fit for Huawei Watch 2 pro Contracted design style, with you life contracted and not simple.