Black Patterned Great Big Brad Rub-Ons. Black dots, stripes and harlequin rub-ons—perfectly-sized for Great Big Brads! Give your 22mm brads a totally personalized look with these cool black patterned rub-ons. They’re 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 rub-ons included. Black rub-ons show up on any medium-toned or light-colored brad.