Cable Lock Combo Includes: 6 foot Thick Steel Security Cable, High Security Four Dial Steel Security Lock Head and Carry Pouch. This iMac Lock - iMac Security Cable Lock, is Perfect against theft or unwanted borrowing. Compatible with all iMac Computers utilizing their built in security slot. The loop-ended security cable is made from galvanized steel and thicker than standard cables on the market. The cable can be looped around a stationary object in the office, or you can purchase an Anchoring unit to create a place for securing the Cable.