EASY TO USE: Quickly stamp over your personal information you want to conceal. The advanced roller cartridge lets you easily mask over long lines of text in a single. Refills fit all Guard Your ID Small stamps, visit B008I5VYVS to see your model and color. IT WORKS!: Unique designed patent pattern combined with the formulated ink works on most glossy surfaces and will mask out your private information. A GREAT ALTERNATIVE TO A SHREDDER: Simple and effective protection with less mess and less noise without requiring the space. Safe to use for all ages. MULTIPLE USES: Perfect for bills, credit card offers, bank statements, tax returns, postcards, junk mail and more. LONG LASTING: Each refill last for approximately 1,000 impressions. Pattern width is 1.0” x 0.5”