The WM220S provides ideal placement and alignment for short throw projector mounting on dual studs. Compatible with the RPA, RPA Elite, RPA Mini and RPA Elite Mini Series projector mounts (must order mount separately) Also supports wall-mounted long-throw projectors. Fast installation with innovative quick-connect system Industry-first micro height and leveling adjustment Integrated lateral shift Telescoping extension, 1.5'-2.5' (457-762 mm) Precision image alignment with micro roll, pitch and yaw (using the RPA Elite mounts) Integrated cable management system conceals and protects cables for a clean finish Multiple levels of security, including All-Points locking hardware, and four projector mount keyed locking options (A/B/C/D) Compatible with the RPA, RPA Elite, RPA Mini and RPA Elite Mini Series projector mounts Includes short throw arm only, projector mount must be ordered separately Includes hardware for wood stud, steel stud and concrete wall construction