A system for teaching a catcher the proper form for the traditional blocking position comprising a wrist strap, a wrist-to-facemask adjustable tether, a retractable tether, an automatic tether retraction system, a release trigger system, and a leg attachment component. The wrist-to-facemask adjustable tether is detachably engaged to the wrist strap as is the retractable tether. The automatic tether retraction system is mechanically engaged to the retractable tether, and is configured to automatically retract and spool the retractable tether. The release trigger system is mechanically engaged to the retractable tether, and is configured to, at least in part, lock and prevent any extension of the spooled retractable tether. The retractable tether in conjunction with the release trigger system is configured to restrict the distance the wrist strap may range from the leg attachment component, while the wrist-to-facemask adjustable tether is configured to restrict the distance the facemask may range from the wrist strap.