This listing is for one (1) keyed alike Master Lock padlock w/ 2 keys. This multi purpose padlock is the required lock on many commercial and industrial job site gang boxes. It is required for most KNAACK boxes and fits the RIDGID Universal Storage Chest and many other construction storage containers. Please check the manufacturers' specs to assure compatibility. These heavy duty contractor grade locks are ideal for all outdoor applications when needing multiple locks that utilize ONLY one key. The same key will open all locks. These locks provide an EXTRA layer of security using the proprietary BumpStop Advanced Cylinder Technology. (for explanation see more product details below). SPECIFICATIONS: 2" (51mm) wide laminated steel body for superior strength. Shackle height clearance is 1" with a 3/8" diameter hardened boron alloy shackle for superior cut resistance. The non-rekeyable, 4-pin W1 cylinder helps prevent picking. PROPRIETARY rustproofing for longer life. Dual locking levers provide extra pry resistance. FEATURING BumpStop TECHNOLOGY - Lock bumping a surprisingly simple method of breaking in through locked doors and padlocks - is undoubtedly the newest emerging threat to personal property security. And virtually all locks in use today are particularly vulnerable to bumping. Until now. BumpStop Advanced Cylinder Technology employs an innovative, patent pending design which utilizes a unique reverse rake tapered driver pin, high performance springs and tightly machined cylinder chambers. During a bump attempt, this design prevents the transfer of force from the bump key to the pins and therefore blocks rotation of the cylinder so that the lock remains locked.inquire and we can normally have them in a couple of days.