WOCCI Silicone Bands These colorful straps are made from high tensile environmental silicone, which are disinfected and deodorized. The strap has a smooth finish with good water resistant and durability. The inner surface in contact with the skin is non-slip with tiny particles. Use quick release pin help you change the strap in a second. The strap is pro skin, hypoallergenic and can be easily cleaned with soap and warm water. It is designed to fit most branded watches and smart watches that uses standard 14mm, 16mm, 18mm, 19mm, 20mm, 21mm, 22mm or 24mm spring bars. MEASURING GUIDE - HOW TO FIND APPROPRIATE WATCH BAND SIZE FOR YOUR WATCH Step 1: Make Sure Watch Band Can be Used on Your Watch Some of the watches cases are in special design with strange shapes. Your watch will need a special strap. Our watch strap is designed in parallel interface which only can be compatible with normal watches. Step 2: Measure Lug Width The lug width is the width of the strap at the end that is attached to the watch.The strap will fit your watch only if the lug width of the watch is the same width as the strap.Take out a ruler, use the side with metric units for measuring.Measure the inner distance bewteen two lugs of your watch. Step 3: Meausre Wrist Length Use a flexible measure tape to measure your wrist snugly. If you do not have a measure tape, you can use a piece of string and then measure the string with a ruler. Compatible with any traditional or smart watch that uses standard spring bars Lightweight Silicone Series Vintage Series Elegant Series Floral Series Thin & Flat Series Luxurious Series Material Silicone Crazy Horse Leather Genuine Leather Genuine Leather Top Grain Leather Italian Leather Color Options 6 Colors 7 Colors 9 Colors 8 Colors 8 Colors 3 Colors Size 18 20 22 24 14 16 18 19 20 21 22 23 24 8 10 12 14 16 18 20 22 18 20 22 18 20 22 18 20 22 Quick Release ✓ ✓