Chain: Heat hardened / heat treated steel, likely ~10 mm cross-section (as per similar Lok Up listing)
Padlock / U-lock: “U” shaped hardened steel shackle with locking mechanism to secure the chain
Use / Application: Motorcycle/bicycle security — the chain wraps around a fixed object, and the U-lock secures the chain end
Highlights / Benefits:
• Hardened / heat-treated steel for better resistance to cutting/sawing
• Combo system gives both flexibility (chain) and rigidity / situational use (U-lock)
