Light and flexible, porous design, more breathable while sport. Made of high-quality silicone, environmental and healthy. Easy to adjust the length to fit your wrist, one size fits all. Material: Silicone Width: 20mm Short belt length: 88mm; long belt length: 120mm 20mm Width Applicable: 20mm For Garmin Forerunner 245 20mm For Garmin Forerunner 245M 20mm For Garmin Vivoactive 3 / vivoactive 3 music 20mm For Garmin Forerunner 645 / Garmin Forerunner 645 Music 20mm For Garmin Venu 20mm For GarminMove 3 / GarminMove Luxe / GarminMove Style 20mm for Garmin Vivomove HR 20mm For Garmin Approach S40 20mm For Garmin vivoactive 3 Other 20mm watch: Samsung Gear Sport / S2 Classic / Galaxy Watch 42mm / Galaxy Watch Active / Samsung galaxy watch Active 2 44mm / 40mm Huami Amazfit Bip Youth / Amazfit GTR 42mm / Amazfit GTS Polar Ignite For Huawei Watch 2 / watch 2 pro For hauwei watch GT2 42mm For Huawei honor magicwatch 2 42mm For Samsung Galaxy Watch 42mm For Gear Sport SM-R600 For Gear S2 Classic SM-R732 & SM-R735 (BUT NOT fit for Gear S2 SM-R720 & SM-R730) For galaxy active Package Included:1x Colorful Silicone Watchband (Does not include smart watches).