Three No. 312-D blue Master padlocks put up on a card. Same key opens all three locks. Includes three keys. 1-1/2" wide laminated steel case with a weatherproof thermoplastic cover. 4-pin tumbler. Dual steel levers lock both sides of case hardened, 9/32" diameter shackle. Clearances: vertical 1", horizontal 1/2". 2 brass keys.