Squire CP50CS Weather Resistant Combi Padlock 4 wheel Closed Shackle 50x22MM The CP50 high security padlock, combines a modern and attractive design with very heavy duty construction. It features a hardened steel 8mm diameter shackle, a 50mm wide die cast alloy lock body with dual compound cover and 4 easy to use spaced wheels. It's unique recodable double locking mechanism offers 10,000 combinations and has a push button spring opening mechanism for ease of use.