Sports style silicone watch band designed for amazfit active 2 band with ventilation holes, breathable, soft and sweat-proof, one-size-fits-all adjustable strap suitable for men women with small/medium wrists, the quick-release mechanism ensures effortless installation and removal, making it easy and comfort for active lifestyles. Compatibility: 20mm Watch band compatible with amazfit active 2 band 44mm/ active 42mm and any watch with 20mm lugs width and uses standard 20mm spring bars Material: Sport style silicone watch band with lots of ventilation holes that's ultra soft, skin-friendly and breathable, providing unmatched all day comfort One Size Adjustable Band: Band width 20 mm, thickness 3 mm, length short band 92 mm and long band 116 mm, fits 140-215 mm (5.5-8.5 inch) wrists Quick Release for Easy Changes: Easy quick-release mechanism, allowing effortless installation, removal and replacement in seconds no tools needed Unisex Versatility: Universal watch strap suitable for both men and women across gym, running, office or casual outings