Stainless steel covered with protective ABS rubber paint: your bike frame won't take a hit! Weatherproof and rust-resistant .C-class cylinder for powerful protection against violence & wear-and-tear – ensuring your bike's safety. • Advanced car rotary riveting tech: joints are kept tight. Foldable lock – staying secure ain't got no hassle
Standard version: High manganese steel
Updated version :Anti 12-ton hydraulic pressure stainless steel
