BRK75BLV MSG Tractor Black Vinyl Backrest Extension Kit BRK6575BLV MSG 65 75One New Aftermarket Replacement Black Vinyl Backrest Extension Kit for Grammer (MSG) Tractor Seats This black vinyl backrest extension kit adds upper lumbar and back support to Grammer MSG65 and MSG75 series suspension seats. Designed to attach directly to the existing seat backrest, this kit extends the seat's support surface for added operator comfort during long hours of operation on tractors, compact equipment, skid steer loaders, forklifts, and