To be used with CeilingMax Surface Mount Grid System. Uses snap in technology to easily mount your ceiling to any surface gaining headroom. Works with any 2' x 2' or 2' x 4' ceiling tile up to 3/4'' thick. Fastens to joist, plaster, or drywall. Saves up to 6'' of ceiling height. No need for wires or leveling. Made of high grade PVC, which is easy to cut. Does not rust or show scratches. Easy 1 person installation. 25 year limited warranty. Class A fire rated. Dimensions: 96'' x 15/16'' x 15/16''. Color: White.