Our factory use high-quality paper and environment protection glue, easy to write, not easy to penetrate ink, super stick, can be used repeatedly. It can be used on any book, desk, blackboard, computer, printer, fridge, door, or bed. Prioritize with Color Coding to categorize documents or bookmark important pages, so as to allow you to mark and retrieve information quickly and easily. It's small and exquisite, easy to carry, and more paper can be used for a long time. It has good adhesion, wearability, and strong stability. It measures 3.03"*4.29"*0.43" and black,white,red,blue,brown colors for your choice. Customize your logo or brand name on the front to boost your brand awareness!