3 Constant-height tees (except XL T which contains 2) with brush bristles. Your ball sits atop these bristles to reduce the resistance at impact for greater energy transfer and distance. Choose from driver (black), 3-wood (blue) Oversize (orange) all at $4.99 per 3-pack, or the new super-long XL T coming in at 3 1/8" (2-pack...$6.99).