Ritche Canvas Quick Release Watch Band 18mm 20mm 22mm Replacement Watch Straps for Men Women Quick Release Watch Band: Compatible with most traditional or smart watches that use 18mm, 20mm, 22mm spring bars. Quick release spring bars are included with and integrated into the band. No tools or engineering degrees required. Our stylish watch straps come in multiple colors, so you can switch it up in seconds. Color coordination was never so timely. Premium Materials: Cotton canvas is durable, soft, breathable with embroidery added for strength & style. brushed 316L stainless steel buckle with solid tongue. In order to maintain a good look of the strap, I suggest that you do not use it in the water for a long time. Flexible Fit: Ritche quick release straps will fit wrists from about 5.5" to about 8" around, depending on strap width and watch size, which will comfortably fit most men and women. Measure exactly the width of the Lug when it is installed on the watch. Measure exactly the width of the place where the watch band attaches the watch.Note:The error of 1mm can lead to inappropriate,it should be keep the 100% exact size measuring. SAMPLE SMART WATCH WIDTHS: (Moto360 first generation and Womens Moto360 Gen2)---16mm; ( Huawei / Withings Activite / Asus Zenwatch 2 1.45" )---18mm; ( Moto360 Gen2 Men's 42mm / Samsung Gear S2 Classic / Pebble Round Large )---20mm. (Basis Peak Fitness Tracker Watch / Fossil Q Founder, Q Grant / Seiko SKX007 / Vostok Amphibian / LG Urbane W150, G watch W100, R W110/ Moto360 Gen2 46mm / Pebble Classic, Pebble Time, Time 2, Time Steel, Pebble 2, 2 SE / Samsung Gear Live R382, Gear 2 R380, Neo R381 What you can get: 1 * canvas quick release watch strap, 1*Spring Bar Tool (While most people can do this with just their finger we also include an assistant tool to meet your needs.)