Heavy Duty Motorcycle & Bike Chain Lock, 3M/10FT 10mm Cut Resistant Security Chain with 16mm U-Lock & 3 Keys, Anti-Theft Lock for Generators, Gates, High Value Bicycles【12mm*1.83m】

• 【12MM Cut-Resistant Manganese Steel Chain】Hardened six-sided hexagonal manganese steel links with HV 830 hardness withstand tension, shear force and tool cutting. The anti-rust and anti-corrosion coating works well outdoors in rainy, salty fog and other harsh weather.
• 【Premium Anti-Theft U-Lock】Equipped with a solid lock head and pure copper lock cylinder to boost anti-theft performance and long-lasting durability.
• 【Adjustable 2-Inch O-Ring】Supports convenient length adjustment to meet diverse locking needs and multiple usage scenarios.
• 【Waterproof & Scratch-Proof Nylon Sheath】Prevents scratches on vehicles and equipment, and strengthens wear resistance to extend service life.
• 【Heavy-Duty Welded Hexagonal Structure】Harder than ordinary alloy chains, it stands against violent damage from hand tools, ideal for securing motorcycles, scooters, gates, toolboxes and more.

Robust 1.83M/6FT security chain lock with tough 12mm HV830 hardened manganese steel links, resisting cuts, grinding and rust. It has a solid U-lock and pure copper cylinder for strong anti-theft security. An adjustable O-ring offers flexible fitting, while a waterproof, scratch-proof nylon cover prevents scratches. Thick welded hexagonal links secure motorbikes, scooters, premium bikes, gates and generators outdoors. Comes with 3 spare keys.