Cisa Locking Line 50mm Solid Brass Insurance Padlock with2 Keys Real security padlocks used in mines and municipalities - When it comes to durability and reliability, Cisa guarantees the best performance over the long term offering a 10 year guarantee. - Designed for high use in residential and commercial applications. - NICKEL plated, Carbon-Nitrogen hardened steel shackle for strength and anti-corrosion. -The rectangular shape of the padlock and the straight shackle bolt make it virtually impossible to use bolt cutters to cut the shackle bolt. Dimensions: - Padlock width: 52mm - Shackle Length: 15mm - Shackle Diameter: 8mm - Distance between shackle and padlock body: 13.5mm