50Pcs Round End 3/8" 7/16" 1/2" 9/16" 5/8" Red

What is this?The flexible rubber end caps protective caps are widely used for screw thread protectors, bolt caps, metal pipe, and plastic pipe tubing end cover, plumbing pipe end caps, furniture end protectors, etc.What will I get?Protective caps vinyl end caps, is in size of : 3/8 inch(9.5mm), 7/16 inch(11mm), 1/2 inch(12.5mm), 9/16 inch(14mm), 5/8 inch(15.5mm) inner dia.In the package of: 10pcs x 9.5mm Round end caps, 10pcs x 11mm Round end caps, 10pcs x 12.5mm Round end caps, 10pcs x 14mm Round end caps, 10pcs x 15.5mm Round end capsIs there any advantages of the product?Protective caps, soft, lightweight, small size, durable, and long service life; Plastic end caps, rubber material, good insulation; Rubber protective caps, easy to install and use.How to use it?Steps of installation: 1. Prepare protective caps rubber end covers with appropriate size; 2. Insert the end of screws, bolts, pipes, etc.What should I notice?Please pay attention to the selection of protective caps rubber end caps with appropriate size, especially the inner diameter