A golf putting practice device adapted to serve as a substitute for a floor vent that fits into a floor duct of a forced air circulation system of a building and includes a ball receiving enclosure and at least one flat support plate member extended outwardly from the ball receiving enclosure. The front wall of the ball receiving enclosure includes a notched portion that provides a golf ball open access to the enclosure when the device is installed into a floor duct. A plurality of apertures are formed in the support plate member to allow for air flow through the plate. A floor air vent cover includes a centrally located closed bottom depression the size of a golf putting cup for receiving and retaining a putted golf ball. The opposite ends of the cover contain air passage openings having tapered sides for directing the air flow away from said depression. The present invention discloses an apparatus for golf putting practice wherein the present invention is an insert having at least one regulation size golf hole disposed therein wherein the insert is complementarily sized and shaped to be inserted into the outlet opening of a conventional heating and ventilation air conditioning (HVAC) system as might occur in the floor of a home or office building replacing a standard vent register. The insert is sized to be removably secured internal of the HVAC outlet so that it can be easily inserted and removed therefrom.

[0004] Also, trainer putting cups are generally in the way when the golfer is not using it. The putting cup needs to be put away when not in use. This requires the golfer to take time to set up the putting trainer device and then put it away after each use or else risk having somebody tripping over it in their home or office.
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[0006] Furthermore, the golfer needs to hit the golf ball hard enough to climb the ramped incline into the cup on carpeted floors, which does not represent the typical green put. On smooth floors, the golfer needs to hit the golf ball less hard but still hard enough to climb the ramp up into the cup. Such unusual strokes by the golfer are not natural putts. Neither of these two unusual strokes improves a golfer's putting stroke and, in fact, might actually hurt the golfers in their putting game when putting on a real golf green. Thus the ramped putting trainers cups are not truly representative of putting on a real golf green.