Master Lock Titanium Series™ padlocks have a marine grade stainless steel body with a titanium reinforced locking mechanism for higher strength and reliability. The shrouded hardened steel shackle delivers optimal cut and maximum pry resistance. The dead locking mechanism delivers extra protection from prying and hammering.The Titanium Series™ also has a convenient to use front access key way with dust cover.Supplied 4 keys and a Lifetime Warranty against mechanical failure.Suggested uses: Sheds, gates or garages. Specifications:Type:49mm stainless steel padlock with titanium finishINternal shackle dimensions: 15 x 16mm.Shackle diameter: 7mm diameter.