finishing CCF Series Plugs for Round Tubing CCF Series plugs for round tubing feature tapered ribs to ensure a secure fit. Perfect for use on a wide range of metal furniture, appliances and similar items. A thick impact and abrasion resistant base make these plugs ideal tubing closures for products subject to heavy-duty service or exposure to adverse environments. * Durable construction and excellent gliding edges * Not subject to rust or corrosion Material: Low-Density Polyethylene Color: Black DO Series Dome, Ribbed Tubing Plugs DO Series dome ribbed tubing plugs are designed with exterior ribs to provide a firm grip inside a tube with a domed finish. This series is ideal for use on metal furniture as attractive finishing plugs. DO Series plugs shield against injury and impact. Material: Low-Density Polyethylene Color: Black 144 * For other material and color options, contact customer service.