The O Ozone Strap is specially designed for Galaxy Watch4 Classic (42mm & 46 mm) Galaxy Watch4 (40mm & 44mm), Galaxy Watch Active 2 (40mm & 44mm), Galaxy Watch Active (40mm), Galaxy Watch (42mm), Galaxy Watch3 (41mm) and Compatible with all smartwatches with 20mm width watch lugs. Features: Premium Material: Superior Quality Top Leather strap, made of 100% premium soft top genuine leather, skin-friendly, comfortable touch feeling on your wrist, sweat-absorbent & wear resistance when touching the desk at your work time. Adjustable Size: Fits 20mm width watch lugs. The size can be adjusted according to the circumstance of the individual wrist. Easy to Install: Come with quick release pins, which lock onto the Samsung Watch interface precisely and securely, no tool needed. Package includes: 1 x O Ozone 20mm Leather strap for Galaxy Watch 4