This portable, regulation-sized cup (4 1/4"-dia. hole) allows you to practice your putting virtually anywhere. Yellow flag is included and make the cup easier to spot and increases putting accuracy. The flag can be removed for storage and it's lightweight and small size make it easy to fit in any bag or suitcase for travel. Made of plastic. Perfect for indoor or outdoor use. Manufactured by Coast Athletic, a leading supplier of sports, recreation and physical education equipment. Putting cups are widely considered an essential training tool for any golf player.Great for practicing and perfecting your putting technique. Also a good aid to practice using different putters including belly putters and long shaft putters. Discounts are available for bulk orders. Contact us for a price quote for larger volumes of this or any other Coast Athletic product. Golf ball shown in picture is not included with this package. The take it anywhere portable golf putting cup.