The ABUS 65 Series Brass Padlocks have a solid brass body and a hardened steel shackle with NANO PROTECT™ coating The inner components are made from non-corrosive materials The precision pin cylinder has mushroom counter pins with the paracentric key-way offering greater protection against manipulation Automatic locking mechanism Sizes 20-25mm are ideal for securing valuables goods of lesser value or at a low risk of theft Such as bags suitcases jewellery boxes cash boxes etc Sizes 30-60mm are ideal for securing valuables goods of medium value or at an average risk of theft Such as chains doors gates cupboards lockers toolboxes cellar windows sheds switchboards etc