We have had a lot of requests for just the Aluminum tophats and grommets from all of our rubber mounted tabs by themselves, or as replacements. This set includes quantity 2 Aluminum Tophats and quantity 2 rubber grommets. These are designed for 1/4" thick material and require a hole that measures .8125" in diameter to fit correctly. Each tophat is made to accept a 5/16" diameter bolt. Perfect for mounting gas tanks, oil tanks, or any other items which require rubber mounting and a great finished look. Made in Ohio, USA.