This 4-pack of 1-3/4 in. wide padlocks is made out of laminated steel for extra strength. The 5/16 in. diameter, 15/16 in. long shackle is manufactured from hardened steel for extra resistance to cutting, sawing and prying. Added security feature is a 4 pin cylinder that helps prevent picking. All 4 padlocks are also keyed alike meaning t...