Features: Upgraded your bike durability with these 4 corrosions resistant metal screws, features 40% strong anti rusts coating to safely fastening water bottles cages on terrains. Precisions engineered sockets and 14.3mm thread length ensure simple installation within second, compatibility with 99% of road bike cages and folding bicycles. Ideal for weight cyclists and competitive cyclists puruses to reduce 30% bolt weight without compromising structural integrity during endurances cycling or races. Maintain hydratation accessibility during mountain trail, commutes, or long distances cycling tours with vibration proof screws that prevent bottles slippage. The knurled edges head provide enhances grip for quickly adjustments, while the standardization guarantees seamlessly integration with major bicycles accessory brands. Specifications: Color:Seven Elections Dimension:19.8x8.4x14.7mm/0.78×0.33×0.58in Component:Metal Package Includes: 4pcs Water Bottles Cage Screws note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you will not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.