【Please Note Before Ordering】The bands only fit 20mm, not 19mm. Please measure the distance between the two points on the watch face where the band attaches. The total length of the 20mm band is 3.5'' x 4.37'' (7.87 \" (200mm)). 【20mm Band】 fits smartwatches and watches with a 20mm lug width, such as Samsung Galaxy Watch 4 40mm/44mm, Galaxy Watch 4 Classic 46mm/42mm (2021 model); Compatible with Samsung Gear S2 Classic (does not fit Samsung Gear S2); Compatible with Samsung Galaxy Watch 3 41mm/Active 40mm/Classic 42mm 46mm/Active 2 40mm 44mm. For more information and watch models, please refer to the product details. 【Silicone Strap】Made of high-quality environmentally friendly silicone, very comfortable to wear, flexible and durable; the waterproof strap can be washed repeatedly without fading, suitable for outdoor fitness, sports, exercise, or daily use. They fit most men and women. 【EASY INSTALLATION】Quick-release design allows your strap to be quickly and easily installed in seconds. It can be easily replaced anytime, anywhere without tools to meet your dress code needs for various scenarios. 【Package】2*Straps, If you have any questions, please do not hesitate to contact us, we will get back to you within 24 hours.20mm Smartwatch Band - 2 Pcs Silicone Quick Release Straps, Replacement