[Privacy Protection]Security protection roller stamps with special meaningless letters design,nicely hide your privacy identity information prevent them from being known by some bad person [Wide Coverage]The stamp roller wide 1.18 inch, perfect for covering private information in a quick way.Suitable for bills, tax information, credit card, postcard, address information and so on.. [Easy to Use]You just need open the stamp cover, roll the stamp over the information, then you can cover information that your want to hide.The stamp is smooth to roll and convenient to operate. [Box Opener]There is a box opener on another head of this stamp,when you push the red botton up,then the blade will appear,it will help you slash the tape wrapped around the package quickly,slide red button down to hide blade after use, avoid scratch hand carelessly [Warm Tips]When covering for the first time, the ink may not be uniform immediately,due to the irregular words parttern designed,maybe there are some blank on the place you covered,which is a normal phenomenon.Just cover it several times,then it will cover all your information.