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.