【Fitting wrist】Band Width：20mm ，Band length7.55"，can fit for wrist 7.5" to 9.1" approx,*The strap length can be cut to a minimum of 6.5" but is not reversible! Please check the size before cutting 【GREAT REPLACEMENT】 Matches most interface 20mm watches，For ROLEX，SEIKO, TUDOR, OMEGA & SEIKO, etc. Great replacement for models such as Rolex Datejust Submariner OYSTERPERTUAL Yacht-Master Daytona&Submariner, Omega Speedmaster & Seamaster Explorer Tudor Blackbay, Seiko Diver Watches SKX007 & SKX009 【SPECIAL MATERIAL】The FKM strap is made of quality fluoroelastomer, which is more comfortable and durable than ordinary rubber material, and has a breathable raised design inside.The buckle is made of quality stainless steel, .*Note: The clasp will be tighter when first used, which is normal and will return to normal in the course of daily use 【Easy Installation】Exquisite box packaging.You will get rubber watch band*1 + 3 pieces spring bars + 2 remover(Red screwdriver for removing the clasp，Recommended to use original spring bars), you can remove or install watch straps easily. 【Shopping Guarantee】 If you have questions about the suitability of your watch, you can contact us to confirm.Any questions when you get bands please kindly contact us directly, we will reply to you within 24 hours.