Positions laser tool on wall - Mounts securely to ceiling trim using clip and clamping screw or use keyhole slots to position on wall * Vertical sliding platform with locking device allows 6-in height adjustment for secure and precise positioning * Attaches to lasers with 5/8-11 thread * For use with GCL 25, GLL2-80, GLL3-80, GRL300HV, GLL2-40, GRL300HVC