The ABUS 37/55mm Granit PLUS solid steel open shackle disc cylinder padlocks offer the highest protection against manipulation (6 Tonne pull resistance) The body and 11mm removable shackle are both made from hardened alloy steel with a cataphoretic coating and rustfree components which give 40 years of corrosion protection. All Granit padlocks endure a -40° Freeze and Impact Test and are bolt cutter, drill and saw resistant. 250,000 key differs, each lock supplied with 1 illuminated and 1 standard plus key and card. ABUS GPS = 10. Where to use it: Securing sizeable objects (storerooms, containers, lorries) Securing objects with a high risk of theft Special requirements imposed by insurance companies For highest security requirements. How it works: Lock and unlock with a key Key Retaining: a key is needed for locking, lock retains key until locked