Bicycle Headset Stem Watch Quartz Movement Waterproof Luminous Watch Bike Stem Top Cap Cycling Accessories

--This product is multi-functional, which can be served as a watch and a headset cap for your bike --It adopts an integrated design, which consists of aluminum alloy cap and electronic watch --The great bicycle accessory is waterproof and dustproof, and is powered by button battery --With luminous function, compact body, shockproof effect, this novel watch makes your bicycle look more fashionable and more grade after easy installation --The upgraded dial is enlarged to 28mm for better visibilityDescription Type Bicycle saddle Material polyurethane Applicable models mountain sports cars size one size Color 189 black red 189 black blue 188 black red 188 black blue Package List 1 seat Note The colors deviation might differ due to different monitor settings Manual measuring please allow 1 3mm errorthank you