Pride Professional Tee System (PTS) is a proprietary system of colour coded golf tees that allows for easy identification of tee length and appropriateness for various golf clubs. PTS features four sizes of golf tees: Shortee - 2 1/8" Red x 120 Pro-Length - 2 3/4" Yellow x 100 Pro-Length - 2 3/4" Yellow x 175 Pro-Length Plus - 3 1/4" Blue x 75 Pro-Length Plus - 3 1/4" Blue x 135 Pro-Length Max - 4" Green x 50