Funny Rubber Stamp - Official Seal of Mother Fckin' Approval - Self-Inking Round Mother Fckin' Approval Funny Rubber Stamp - Official Seal of Mother F*ckin' Approval - Self-Inking Round Mother F*ckin' Approval Quality satisfaction guaranteed. Lasts thousands of impressions. Ink pad is refillable. Clean, easy to use, self-inking stamp. No mess, ink built into the stamp. MOST orders ship within ONE BUSINESS DAY, but please allow between 2-3 days during the Holidays. This round self-inking stamp impression is 1 5/8" in diameter.