The A.R.E. clockwise lock is a black screw mount, polymer t- handle lock. This lock is for truck caps, toppers, and camper shells. These are featured on many A.R.E. truck covers with center mounted aluminum framed rear doors.The construction is heavy duty, with a built in keyhole dust cover. This keyhole cover protects internal parts from corrosion. Included with this product is the t- handle, two keys, and two screws. The locks are keyed #1 to #20. These are designed for A.R.E. brand camper shells including V, CX, TW, MX, and Overland series with one t- handle on the rear door. If your door has two of these t- handle locks you will need to order two of t- handles. Made to work with A.R.E. factory locking rods with square hole.