SBDs (Pack of 4) 1-1/2" Round Flexible Vinyl Push-On Black End Caps  Bolt Wire Screw Thread Protector Safety Cover Plugs 1 1/2 x 1 inch tall | Made in USA   VC Series Vinyl caps are extremely flexible and Pliable. Can stretch up to 1/16" larger for a snug fit. These are durable protective closures which are ideal for use as thread protectors, dust and moisture seals, pipe and stud end, and for masking during painting or plating operations. Select the size that matches the OUTSIDE MEASUREMENT of your pipe or tubing. Made in the USA from soft PVC "rubber like" that will hold up for years of use. Round finishing caps for round tubing and rods make economical, attractive glides for everything from household and patio furniture to exercise equipment. As finishing caps they cover any scratches, burrs or distortions that may result from cutting operations. · In addition, they also provide protection against injury from sharp rod and tubing edges.