Features: Effective Privacy Protection: Security protection roller stamps with special letters design, printing hiddens under the confidential information, make your personal information illegible, covering sensitive documents like bills, bank statements, medical records, prescriptions bottles, etc. Wide Coverage Design: The below 25mm inches wide roller is perfect for covering large swaths of private information in a quick, no need for multiple passes to blocks your info, one single stroke is enough. Unlimited Re-inking: Ink can be refilled in the security protection roller stamp side when ink runs out (Stamp Refill Ink), about 2 drops each time. Best Time Saving: Stamp works well on all regular paper, envelopes and package addresses. One swipe and the info is covered, no need to go for a shredder. Notice: Actual color may be slightly different from the image due to different monitor and light effect Please allow 1-3cm deviation due to manual measurement Asian size is smaller than eu/us/uk size,please compare the detail sizes with yours before purchasing. Description: Material: plastic Shape: roller Purpose: document confidentiality