Onguard Mastiff 5021 chain with built-in lock 
10mm 3/8" titanium reinforced hexagonal link hardened
Ideal to lock up Bicycles, Scooters, ATV's and Motorcycles. A lightweight hardened chain providing more security than cable locks. Always lock your vehicle to an immovable object.

Check our Security Tips and Advice page here 

Chain

• 10mm - 3/8" Hexagonal short link chain
• 170cm - 5.5ft long
• Ultra Hardened reinforced steel provides maximum cut resistance
• Soft fabric sleeve provides scratch protection

Lock

• Built-in lock
• X2 Double Bolt Locking mechanism
• Pick, pull and drill resistant M-Key cyclinder with rotating dust cover
• 5 laser cut keys, 1 with LED micro-light
• Protective coatings on integrated locking mechanism