Feature:1. High-strength aluminum alloy material, fine workmanship, high hardness, not easy to deform.2. Surface adopts anodic oxidation treatment, with bright color, corrosion resistance.3. The second smoothly treatment, the fine craftsmanship, makes its personality shine.4. Used to fix the the crankset and crank of the chain wheel, necessity accessory for cycling.5. 20mm/0.8in crank screw cap, precise machining, fits crank perfectly and offers professional fixation.Spec:Item Type: Bike Crank Arm BoltsMaterial: Aluminum AlloySize: Approx. 20mm/0.8inWeight: Approx. 22.0g/0.8ozQuantity: 2PcsPackage List:2 x Bike Crank Arm Bolts