Beautiful and durable: The mailbox number glue is made of ABS plastic, which is strong and lightweight, and the materials make it waterproof, heat or cold resistant, not easy to fade and can be used for a long time.Advantages of 3D: These address number stickers are designed in 3D shapes and show perfect curvature on the digital surface. They look like metallic materials. They are bright and shiny. All show high taste and add beauty. Self-adhesive design: The chrome self-adhesive door number adopts self-adhesive design, no screws, no drilling, just gently tear off the adhesive strip on the back and stick it in the position you want, very easy to install.Applications : these door numbers pasted on the door can be widely used in homes, offices, hotel rooms, apartments, school classrooms, etc., such as door numbers, phone numbers mailbox, house address numbers, and also suitable for car decoration. Note: The data are all manual measurement, please allow 1 - 3cm error, due to the difference in light and display, there will be a certain color difference, depending on the physical object received. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.