Weatherproof Rustproof PadlockThe heavy-duty disc padlock is made of 304 stainless steel, which is ultra-waterproof and rustproof. It provides maximum protection against corrosion during outdoor or indoor use. The high security round padlock for outdoor and indoor use is a high-reach safety padlock, suitable for indoor and outdoor use, such as cabinets, warehouses, storage units, fences, garages, sheds, gates, etc. 0.9.5mm Hardened Steel ShackleThe inner structure and shackle (9.5mm) with a round shielded design minimize the shackle's exposure, which will prevent bolt cutter attempts from breaking it. It is designed for increased strength, security, and cut resistance.High-precision tumbler mechanism made of chrome-plated solid brass with shielded shackle and 5-pin cylinder for resistance to picking and prying. Durable and sturdy construction minimizes shackle exposure and protects against bolt cutter attacks. Buy with confidence If you have any problems, questions, or concerns.