Note from Hitting World: We only suggest using this tee when set to the "slightly upward" swing path. The "level swing" and "downward swing" options are detrimental to proper swing mechanics in our opinion.
Louisville Slugger InstructoSwing batting tees were developed to help batters of all ages and skill levels practice and learn how to swing a bat correctly so as to produce line drives, hard ground balls, and fly balls that carry. The “New and Improved” angle adjustment feature and tee placements are designed to work with all the major hitting philosophies being taught today. The patented rubber-coated good habit bars help prevent casting, chopping, or uppercutting by supplying instant feedback to the batter on bad swings.