3.5" X 4.5" rub-off Fingerprint Ink Pad (best use for roll fingerprinting).<br> Porous Polyethylene pad with smooth surface, <br> creates clean, true black fingerprints.<br> Fingerprints produced by this product are accepted by FBI for classification, search and retention.<br> No messy, never dries, capacity 5,000 impressions* <br> It is suitable to use for local, state, federal governments' fingerprinting, background checks.