HOW TO FIT: 1x 2 (Outside dimensions) Rectangle Plastic inserts. NOTE It will not fit the inside dimensions of 1x 2. EASY TO INSTALL: Our 1x 2 snap in plug is a long-lasting solution for many household or outdoor projects including: Fence/Fence Railing Posts, Gate Rail Post Covers, Trailer Frame End Posts, Pole Pipe Rod Caps, Metal Bike Fittings, Wrought Iron Steel Finishing Plugs. FLOORING PROTECTION: black ribbed plugs prevent scuffs on wood and other natural floors. They provide a protective glide for chair tips, bench feet, table legs, bar stools, patio furniture, and other furniture designed for furniture inserts and plugs. PREMIUM QUALITY PLUGS: Our plastic end caps and inserts are designed to hold up in all harsh weather conditions and high traffic areas.