Abstract: A tubular golf ball carrier of rigid plastic shaped like a sight gauge and normally carried in an upright manner retains golf balls within tubular carrier with sight opening. Reducing couplings are attached to the ends of the tubular section with sight opening. The bottom coupling has an aperture too small to pass a British golf ball. The top coupling has an aperture large enough to pass a U.S.G.A. golf ball. The top coupling retains a thin flexible annular ring between its inside upper wall and the upper rim of the tubular section. The flexible annular ring flexes to permit ball entry and withdrawal when a golf ball is pushed against it, but when relaxed it prevents a golf ball from rolling out of the carrier. The flexible annular ring is sized for either U.S.G.A. or British golf balls and is removable for use of the annular ring corresponding to the golf balls being played. The tubular carrier is attached to a golf club bag through holes with a rivet and/or other attaching means.