Profile: Sport Masters, Inc. manufactures tonneau covers. We serve automotive industries. We deliver frame mounted, hinged and vinyl tonneau covers. Our TM-80 roll cover is a snapless, low profile tonneau cover that rolls up in one convenient piece. We supply Spot Free® water filters and water softeners, which are used for boats, RV or automotives. We also design nautical accessories. Our ball mount bag is equipped with a heavy-duty zipper, which includes a pair of rugged fabric work gloves and a tool pouch.