Putting practice just got alot more fun with the Jef World of Golf extra-large putting mat. This mat replicates life like green conditions, making indoor or outdoor practice just as convenient as being on the course. Use in the home, office, garage, work or outdoors, this convenient roll-up putting green is the easiest way to practice your short game year round. Designed by avid golfers, the Jef World of Golf putting green is made for fellow golf enthusiasts. The green accurately simulates real green speeds, so golfers can practice putting with precision.