The master lock 1174d pro series stainless steel 4 digit padlock is made from high quality stainless steel across the body and shackle for increased protection against corrosion making it suitable for outdoor use the resettable 4 digit lock has the possibility of over 10000 combinations and the deadlocking mechanism protects against prying shimming and rap attacks the combination dials are extremely easy to use thanks to master locks unique blind system theyre easy to turn even when youre using