Features: Quick-release spring bars- allow you to disassemble straps in seconds- without any tools. Measure the inner distance between two lugs on your watch casing. The strap will fit your watch only if the lug- width of the watch is the same width as the strap. Designed to fit most traditional watches and for smart watches which lug- width is standard 20/22mm. No peculiar- smell or for sharp edges, harmless, lightweight, flexible- and fairly sturdy-. Made of upgraded high-performance soft skin-friendly silicone, the surface- is smooth-, lightweight and safe- to wear. Specifications: Material: silicone+stainless- steel Size: 20/22mm(optional) Color: black/blue/olive- green/wine red/red/light pink/jeans blue/grass green-/light grey-/white/black Note: Please allow 1-3cm error due to manual measurement. pls- make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Silicone Watch Strap