This Yale Anti-Cut Extra Strength Padlock features anti-cut boron shackle for maximum cut resistance It also has anti-pick 5-pin mechanism properties that’s great for protection and outdoor application Has double ball locking for pull/pry resistance and tested to EN 12320:2012 grade 6 security Upgraded key way for additional corrosion protection and suitable to use on garages, sheds, outdoor storage, cellar doors, gates, tool boxes etc. This weatherproof padlock comes with 3 keys making it possible to use even if you lose one key