Master Lock - Titanium Trailer Door Locks 2-5/16" #187KA-2 Pack This listing is for TWO (2) Titanium Series padlocks keyed alike (same key unlocks both) and four keys, making it ideal for all outdoor applications when needing multiple locks that utilize ONLY one key. SPECIFICATIONS: 3-1/2 inches high x 2-5/16in (59mm) wide stainless steel lock body for maximum strength, reliability, corrosion resistance and No Rust Lifetime Guarantee. The 5/16in (8mm) diameter shackle is 15/16in (24mm) long and made of hardened steel. BOLT CUTTER TOUGH: The fully shrouded design minimizes shackle exposure and protects against bolt cutter attacks. The 4-pin cylinder prevents picking and the dual locking levers provide resistance against prying and hammering. WEATHER TOUGH sliding keyway cover keeps dirt and grime from jamming the locking mechanism. Scratch proof and durable ABS plastic bumper. Limited Lifetime Warranty provides peace of mind from a brand you can trust. This lock is also available in a 1, 3, 4, 6 & 8 pack quantity, search 187KA in our storefront.