Check the listing for details. 4 PK: Vinyl End Cap For 2x4 Wood Post Stud Cover (1-1/2" x 3-1/2") White Rubber. Color: White, Condition: New. Listed at 19.75 USD. White flexible vinyl post caps look great and are designed to cover the ends of our lumber after cutting. This cap fits snug over a standard 2x4 (Approx; 1-1/2" x 3-1/2") to protect the wood post end from weather exposure. The cap is 1" deep. MADE IN THE USA!!!! Quantity 1 = 4 CapsHeavy Duty Vinyl Post Cap (Approx: 1" depth)Stretches over a standard 2x4 (Approx; 1-1/2" x 3-1/2")Creates decorative finish while preventing end rot and protecting your postsCreates a moisture barrier Maintenance Free and is able to weather all seasonsThese are designed to fit very snug on a standard 2x4, and in colder conditions, they can be very difficult to apply. As such they may require heat to make them as malleable as possible. A soak in hot water, time in the sun or a hair dryer can often make instillation much easier.