Features1CNC Machining: The product is processed by CNC, which is light in weight and does not decrease in strength. 2Material: Using aluminum alloy material, increased strength and hardness, anti corrosion and wear resistant. 3Four Colors: There are all black, black red, black green, black purple, you can choose the color as required. 4Stable Motion: Precise bearing rotation point for stable motion and durability, anodized color, anti oxidation, gloss retention. 5Polished Surface: The surface is polished, the hand feels are fine, and the button has a non slip texture.SpecificationItem Type: BicycleLiftingSeatPipelineControllerMaterial: Aluminum AlloyWeight: Approx. 92g/3.2ozInstallation Diameter: Approx. 22mm/0.9inPackage List1 x Bike LiftSeatPipeline Controller1 x Wire Core2 x Screw