Rafter Mount with Support Brace for Heavy Bags up to 120 LBS by PRO Mountings SPRING ACTION REDUCES VIBRATION AND NOISE TO THE ROOM ABOVE MOUNTS TO ONE CEILING JOIST FROM BOTTOM AND SIDE FOR ROCK SOLID MOUNTING FOR HEAVY BAGS UP TO 120 LBS - ALL MOUNTING HARDWARE INCLUDED ALL 1/8" STEEL CONSTRUCTION - POWDER COATED TO LAST SUPPORT BRACE THAT REDUCES VIBRATION EVEN MORE