Watch ProtectionThe silicone watch band keepers can fix the end of the band in place to protect the band. It can also prevent the strap from being lost or damaged. Easy to useThe watch strap loops are easy to use to replace the old watch strap ring. When wearing the watch, it only takes a few seconds to slide the watch ring onto the clasp. It is suitable for most smart watches, mechanical watches, sport watches and more. Fastening: Clasp Classic Reusable MaterialThe watch band ring is made of silicone material which is lightweight, flexible, sturdy, and wear-resistant. It is easy to install and provides you with a comfortable wearing experience. 18mm Lug Width Black Replacement Watch Band LoopsThe replacement watch strap rings can be used in watch straps or universal watches with a strap width of 18mm, and can be compatible with watches of all major brands. Package ContentYou will get 10 pieces of 18mm black watch strap loops from the package. The size of the watch band retainer fastener rings is 2.2 x 0.85cm/0.87 x 0.33inch.