MIDLITE R1SPSC-W SpeedPort Sc 2" Universal Cable Pass Through, Fastening & Anchor System, White Replaces The Grommet With A Screw Cap & Screw Suited For Hanging Box Speakers, Sound bars & Even Heavy Pictures Easy To Install Using A Hole Saw & A Phillips Screwdriver Anchors To Wall Or Ceiling, Screw Head Extends Out From The Screw Cap To Hang Object Features A Hang Wire Through Hole For Acoustical Ceiling Installation