The Vulcan range of open shackle padlocks, by premium lock manufacturer Henry Squire & Sons Ltd, are designed to be extremely attack-resistant, featuring a diecast steel body and hardened boron alloy steel shackle. These padlocks are operated by a double locking combination lock with 4 wheels which allows for 10,000 combinations, meaning no keys are required. Squire are so confident in their padlocks, all security products come with a 10 year guarantee as standard. As well as being highly secure, they also feature an attractive satin chrome body cover, marked with the Squire logo as an assurance of quality. Features Soft feel cover 4 wheel lock has 10,000 combinations, Hardened boron alloy steel shackle Die cast lock alloy body Fully recodable