Heavy Punching Bag Hanger Mount "The Silencer" Reduces noise & vibration 58%, Load rated at more than 300 pounds, Increases structural strength.The heavier the bag the better it works! Mount up to 300 pound heavy punching bag for a 58% reduction in noise. Lifetime Warranty Easily mounts to wood beams or drywall ceilings and walls WITHOUT DAMAGING THEM! No obstacles in workout space = Ability to practice footwork with NO BROKEN TOES! German Engineered design allows precise free flowing movement in all directions. All mounting hardware included Industrial strength for the home gym. Fits standard 16 inch spacing between joists.