Check the listing for details. Pliable Vinyl Caps, Push-on Round Cap Fits 3/8"-7/16" OD, 1" Inside Height, *10. Condition: New. Listed at 1.49 USD. Gregoriou Brothers Refrigeration Since 1979Frosty-Freeze Pliable Vinyl Caps, Push-on Round Cap Fits 3/8"-7/16" OD, 1" Inside Height, *10 Pliable Vinyl CapsI received this message on my eBay message system........"Dear john102561, John these worked perfectly on my ham radio tribander hy-gain th7dx with 7/16 tubing on the end of elements to keep water out .I used a little rubber silicon for lubrication to make it slide on easier as well as lock it on since it will be outside at 55 ft in the air Push-on Round Cap Fits 3/8"-7/16" OD 1" Inside Height Quantity is 10 OUR Part# MMC-9753K42 Keep pipes clean with these handy push-on caps. Durometer hardness is 75A. Maximum temperature is 140° F for 10 minutes. Color is black. Pliable Vinyl Caps I received this message on my eBay message system........ "Dear john102561, John these worked perfectly on my ham radio tribander hy-gain th7dx with 7/16 tubing on the end of elements to keep water out .I used a little rubber silicon for lubrication to make it slide on easier as well as lock it on since it will be outside at 55 ft in the air" - slus4u Push-on Round Cap Fits 3/8"-7/16" OD 1" Inside Height Quanity is 10 OUR Part# MMC-9753K42 Keep pipes clean with these handy push-on caps. Durometer hardness is 75A. Maximum temperature is 140° F for 10 minutes. Color is black. at 19:38:49 PDT, the following: