The ABUS Diskus® lock is a special kind of padlock with some distinct advantages. The disk shape itself effectively combats the most common ways of forcing it open. The design with only a small opening in the shackle makes it very difficult to tamper with. As these disk locks are mainly made of stainless steel, they are used especially where both security and protection against corrosion are required. The 25 lock is used to secure trucks, vans, doors, gates, barns, cellars, etc. and it uses a convenient reversible dimple key. The Code Card that comes with the lock can be used for producing extra keys at a local lock shop.