6 size, 16mm,18mm, 20mm, 22mm, 24mm, 26mm rubber loop. Package: 18Pcs rubber rings, each size for 3Pcs. 18Pcs enough for your daily use.Made of high quality silicone with good elasticity, it is lightweight, stain resistant, not easy to wear, anti-skip and waterproof which is comfortabe to wear.No harm to skin. This fasteners accessories can keep your device safe.strapThe Watch band retainer is flexible, sturdy and easy to get on the wristband. Just stretched/slipped it over the buckle. Only take one second to replace , much easier to put on the watch by holding the band in place.The Watch band holder is ideal to solve the problem of coming loose and falling off. The perfect choice to make your watch look new These watch strap loop include 4 size, they are suitable for most watch bands.The package contains 18pcs rubber watch strap loops (6 size), and 2 watch strap removal tool. Please confirm the watch bandwidth before purchasing.