1.Compatible Models:This quickFit 26mm watch band Compatible with Fenix 8 51mm/Fenix 7X Sapphire Solar/Fenix 7X Solar,Tactix 7 Pro,Fenix 6X Pro/Fenix 6X Sapphire Solar,Fenix 5X /5X Plus,D2 Charlie/D2 Delta PX,Enduro/Enduro 2,Descent Mk1/Descent Mk2i /Descent Mk2 ,Tactix Delta/Tactix Charlie/Tactix Bravo,Quatix 3,Fenix 3/Fenix 3 HR.Please check your original watch band before purchasing. 2.Nylon Material: This fenix 5x watch band is made of nylon material.Nylon has excellent abrasion resistance and is not prone to linting and breakage in daily use,which can maintain the integrity and aesthetics of the strap and prolong its life. 3.Adjustable Length:The Velcro design makes it easy to adjust the band's tightness to fit different thickness of wrists perfectly.It is easy for you to adjust,fit wrists 6.89'-9.06' (175mm-230mm). 4.:This fenix 6x pro band comes with a quickfit adaptor for easy installation.And you can quickly and easily install and removal the watch band as needed, provide enough security when in sports activities.