Bike,holder aluminum alloy material,rust resistant forever,no deformation,no cracking,shock resistance,wear-resisting Bike Rack Material:Aluminum alloy Characteristic:1.Rust resistan forevert,no deformation,no cracking,shock resistance,wear-resisting.2.Friendly-environmental,no environment pollution, acid and alkali resistance.3.Supply many kinds to choose.4.Provides custom service.Please contact ...