Xstamper 1008 APPROVED, Pre Inked Laser Engraved Rubber Stamp, Blue Ink, Impression Size: 1/2" x 1-5/8" Blue Inked "APPROVED" Rubber Stamp Impression Size: 1/2" x 1-5/8" laser engraved rubber makes this stamp strong for many years of use Makes approximately 50,000 impressions before needing to be re-inked Xstamper (Oil Based) Ink