Thank you for viewing. This is a 4-inch (101.6mm) black set, including sizes 0, 2, 3, and 6, with mounting screws. These are authentic items purchased from Home Depot in the US. I kept them in storage as I no longer have a use for them. They are not sold individually; this is a set of 4 only. They are new and unopened, but please understand that they have been stored by a private individual, so no returns or refunds are accepted.