Every Golfer should have a "BYRDIE" - the best new invention in golf accessories since the tee. The "BYRDIE"is a golf ball mark and holder set that installs easily to the putter without tools. The "BYRDIE" snaps in and out of its holder on your putter for easy and convenient access. The "BYRDIE" will remain securely attached to your putter during normal golfing activities, including removing and replacing the putter in your bag. Available in red, white, blue, pink, and yellow. Assorted colors on all bulk orders, unless otherwise indicated. Made of durable plastic, in the U.S.A. Ten day money back guarantee.