Protect your cheek and jaw with the Markwort C-Flap. The innovative design of the C-Flap helps prevent serious injuries to the batter, protecting the side of the face exposed to the pitcher. The C-Flap will provides a clear line of sight to the pitcher allowing the batter to focus in on the pitch, cutting down on peripheral distractions. For use by professionals, amatuers, and any ballplayer that is looking to gain some protection and a boost of confidence. The C-Flap comes with one C-Flap, fitting template, and hardware necessary for installation. Installation is straightforward and may require use of 7/32 drill bit and drill (not included). Information and Installation video available online for reference. Developed by Dr. Robert Crow, physician for the Atlanta Braves in the 1980's, C-Flap is the cheek & jaw protector that has become the standard for batter's protection.