As part of the official Colin Montgomerie golf range, this is the perfect ball-marking accessory for any golfer. It uses a mess-free ink transfer tape and comes supplied with a lacquer to provide a protective coat that will outlast the life of the ball. Simply place up to 3 letter blocks into the device and close the clamp to print the letters on the ball. Personalises individual balls. Comes with two sets of A-Z letter blocks.