These tubular cam lock set are keyed alike which allowing all locks to be operated by one key, really convenient. EASY TO INSTALL: Installation of Sartatue RV storage locks are quick and easy. The locks’ versatility allows them to be installed in multiple positions (at the 3, 6, 9, and 12 o’clock position and opens with a 90 degree turn) by adjusting the installation direction of the positioning piece and lock plate.