Pre-Inked Guam Notary Stamp - Impression Dimensions: 15/16" x 2-13/16". This Guam notary stamp has laser engraved rubber that makes this stamp strong and durable for years of use. Makes approximately 50,000 impressions before re-inking is needed. Use Xstamper Refill Ink only. Use of any other ink will void out the warranty.