Dock and lock the gasket to the frame with this unique patented system featuring SEAL-Tek technology. Whether you are indoors, outdoors, need the complete SEAL or general eye safety, the user determines the configuration. Pegs and tracks are situated in precise positions on each gasket. When attached to the frame they combine to increase pressure points, securing the gasket in place. Durable, Ultra Foam coats each gasket and provides. comfortable SEAL with just the right amount of ventilation. Smoke Green and Clear as Crystal lenses are included with the system and can be interchanged according to the light and weather conditions.