MaterialThis wristwatch band is made of silicone, which feels comfortable. By combining the soft touch feeling and lightweight design, you can hardly feel it AdjustableThe pin buckled design makes it adjustable in length. Anytime you feel it is a little tight or loose, you could adjust the holes to easily get the suitable length Product Size3 Sizes to choose from 17mm,19mm,20mm (Lug width). Band length: long strap/11.8cm, short strap/8cm. Thickness: about 3mm Easy to InstallThis watch strap is easy to install and detach to save your time. Change your watch in a different style in a few minutes. Don't need to buy another watch NotePackage include:1*watch band. Please measure lug width of buckle (Width where the buckle attaches to the band) . This watch strap does not contain pins, please use pins from your previous strap Description: brand new and high quality Feature: 1.This wristwatch band is made of silicone, which feels comfortable. By combining the soft touch feeling and lightweight design, you hardly notice it for day-to-day usage 2.The pin buckled design makes it adjustable in length. Anytime you feel it is a little tight or loose, you could adjust the holes to easily get the suitable length 3.This watch strap is easy to install and detach to save your time 4.Change your watch in a different style in a few minutes. Don't need to buy another watch. Just change the style to meet your need using this replacement watch band 5.The watch can decorate your wrist to better match your apparel Specification: Band Material Type:Silicone Color:Black,Grey/Gray,Red,Coffee,White,Dark Blue Clasp Type:Buckle Size:17mm,19mm,20mm Band Length:Long Strap:11.8cm,Short Strap:8cm Clasp Material:Plastic Thickness:about 3mm Note: 1.please allow 1-3 cm/ 0.39-1.18 inch difference due to manual measurement and 3-5 g/ 0.007-0.01lb/ 0.11-0.18oz for the difference between different colors 2.due to the screen difference, the color may be a little different from what you expect, please allow it Packaged include: 1 x watch strap