The Trigon Sports ProLine Baseball Layout System is a 12-piece set that makes it easy to permanently locate key measurements for any baseball or softball field, eliminating repetitive measurements. Once in place, simply connect the guide string to the markers and begin striping to get fast and accurate measurements. Anchors for guide string are built in to the markers so they won't get lost. If marked lines become too faded to follow for re-striping, the locators will still be in place. Just restring the particular area, and your marked lines are accurately relocated. Additional markers available in six and 10-piece sets can be used to locate inbound lines, coaches' boxes, penalty areas and more. It includes locators, started tool, and 600-foot roll of cord. About Trigon Sports Located in Memphis, TN, Trigon Sports is family owned and specializes in the direct importation and distribution of team sports equipment. Providing the essentials for every level of play from Little League to the Big Leagues, Trigon Sports is well known for their exclusive line of ProCage™ branded sports equipment, which features the industry's best protective screens and batting tunnel nets. Trigon has expanded the focus of its product line from baseball/softball to include all major team sports, including basketball, soccer, volleyball, tennis, track & field, and speed & agility training.