The sturdy adhesive backing allows you to attach the silicone pen holder securely to a table, computer monitor, whiteboard, desktop, mirror, clipboard, or any smooth without worrying about it falling off. Always keep your desktop organized. Made of high-quality silicone, this pen holder is , flexible, and wear-, ensuring long-term use. Each desk pen holder has a self-adhesive back that holds securely to most non-porous surfaces and 't fall off at all when the pen is pulled out. The desk pen holder adopts a textured design, which greatly improves the grip of the pen holder, and the flexible design can accommodate pens of various sizes.