non-threaded L Series Lift-Tab Tapered Plugs L Series plugs have a tapered design with a lift-tab feature to facilitate easy removal. Great for small size openings and in tight areas where a side tab would not be preferred. Pulling the tab exerts an off-center force which breaks the seal between the plug and wall of the opening. Material: Low-Density Polyethylene Color: Red 112 * For other material and color options, contact customer service.