Safefoam padding is great for fence tops, rails, posts & poles. Overall diameter of 3-5/8" with 3/4" wall thickness and 2-1/8" inside diameter opening. Foam has a tough-skin colored coating.Safefoam comes in 8" lengths and is pre-slit for easy installation. Easy to cut to length or miter corners. Fits completely over any round pipe that is 2-1/8" in diameter or across chainlink fence tops. Secure safe foam with tie wraps (sold separately). Minimum order of 6 pieces