HOW TO FIT: Rubber End Caps.This cap only fits 1 1/2" - 1.5" round tube or pipe ( 1 1/2" Outside Dimension) & can stretch up to 1/16” larger for a snug fit without tearing or splitting. 1" deep / tall to provide a secure fit. EASY TO INSTALL: These rubber pipe caps are easy to install 1 ½" push-on caps serve as a long-lasting solution for many household, outdoor, & marine boat dock projects including replacements for fencing railing posts, steel gate rail stopper, rod / rebar or wrought iron caps, thread bolt screw or nut safety, hub cap sheath, or finishing any round tubing project. FLOORING PROTECTION: Prescott Plastics 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 plugs and inserts are designed to hold up in all harsh weather conditions and high traffic areas. MADE IN USA: These Plastic Plugs are specially designed and produced in USA to maintain quality, endurance and durability. High quality Prescott Plastics brand slip-on vinyl soft PVC end caps. These Vinyl End Caps are designed to fit round tubular steel, wood or plastic. Push-fit Vinyl End Caps can stretch onto slightly larger dimensions for a snug fit without tearing, splitting, or shredding. Made in the USA from soft PVC that will hold up for years of use. **DIMENSIONS ARE FOR VINYL CAP INSIDE DIAMETER**