7/8" COMBI-CAM RV LOCK - Black. Solid metal cam lock with 1,000 possible combinations. Requires no expensive kits nor the arduous task of entirely taking apart the lock to replace disks. Changing the combination is simple--with the lock set on the opening combination, push the reset button while setting the new combination. Available in two finishes and three cynlinder lengths. Replaces any 3/4" keyed cam lock.