The ABUS 180IB Series Marine Grade (Weatherproof) Combination Padlock with a 4-digit resettable combination. Body made from solid forged brass and features a stainless steel shackle and non-corrosive inner components. Precision locking mechanism with special protection against manipulation. Low to medium security requirement where convenience of use is a high priority (e.g. schools, companies) Overall width: 53 mm. Overall height: 75 mm. Overall depth: 25 mm. Shackle width: 25 mm I.D. Shckle height: 25 mm. Shackle Dia: 8 mm.