The Club Champ Automatic Golf Putting System is a great way to practice your putting skills indoors. This indoor putting green features seven-feet of putting green with a regulation size cup and automatic ball return. Constructed with high-quality materials, this non-direction turf simulates real grass-like on the course. Whether you're at home or the office, use the Club Champ Automatic Golf Putting System. Features: Easy to set up Non-directional turf Portable indoor golf set Gravity return ball track for putts Regulation size cup returns most putts Specs: Putting Surface: 7 ft.