The Perfect Practice Collegiate Putting Mat is designed for adult golfers looking to improve their putting skills. Measuring 9 feet 6 inches in length, this indoor/outdoor multicolor mat is endorsed by professional golfer Dustin Johnson. Ideal for honing putting techniques, it is a great tool for golfers looking to practice their game at home or on the go. The Perfect Practice Collegiate Putting Mat is a quality training aid for those looking to enhance their putting performance on the golf course.