Firstlaw Fitness Shock Mount Heavy Punching Bag Hanger - (140 LBS Bags to 260 LBS Bags) - Made in The USA THE SHOCK MOUNT EASILY INSTALLS ON DRYWALL OR OPEN FLOOR JOIST WITH 16" ON CENTER SPACING GAS SHOCK TECHNOLOGY REDUCES NOISE AND VIBRATION DURING WORKOUT THE SHOCK MOUNT COMES PRESET TO YOUR HEAVY BAG WEIGHT POWDER COATED FOR A LONG LASTING FINISH - ALL MOUNTING HARDWARE INCLUDED SATISFACTION GUARANTEED - MADE WITH PRIDE IN THE USA!