Brass padlock, standard security, 25 mm, 3 keys, steel shackle thickness 4.2 mm, shackle height 13 mm Optimised for indoor use Helps you secure your locker, tool case or other items you want to store indoors. Secure and robust Protect your items with a high-quality and robust open steel shackle and a 4-pin cylinder. Stringent testing Tested for corrosion resistance for up to 48 hours to ensure protection from the elements. Dimensions