Black ABC Great Big Brad Rub-Ons. Vintage-type black 1/2" high alphabet rub-ons are perfectly-sized for 22mm brads. They are easy to apply: Just cut out the rub-on from the sheet, then remove the liner. Attach your brad to your paper, then position the cut-out rub-on on top of the brad and rub firmly with the enclosed craft stick. 40 letters on the sheet, with doubles of A, E, I, O, U and G, H, L, M, N, R, S and T. Black letters show up on any medium-toned or light-colored brad.