The batter's box can be accurately aligned with home plate with this easy-to-use marking template. It adjusts to 3 sizes, (3 x 6, 4 x 6, 3 x 7) and for use with youth leagues or regulation baseball or softball games. Simply line up the handle of the template with the edge of home plate to determine if your batter's box is the accurate distance from home plate. Put the 2 markers on both sides of the plate and trace the outside edge with a marking tool, then apply chalk. following the lines. Made from heavy-duty steel, this template is also lightweight enough to carry on and off the field with ease. Spring-loaded buttons help break down the unit for convenient storage.