3D Effect Design : These silver 3D home numbers for address are made of ABS Electroplated Plastic and the surface is electroplated. They are shining, durable, and lightweight, making your housemailboxdooroffice stand out so people can see from a distance. One set includes 10 house numbers from 0 to 9. Each number is 4 inch10 cm high. Please make sure the size and quantity you need before you order and use it Self-adhesive and Sticky : The back of these mailbox numbers for outside are covered with thick 3M glue strips. The 3M glue strip is very sticky, so you don't have to worry about having to change the house number frequently. No drilling is required, so there is no damage to the mounting surface. No glue is required, very convenient Can be Used in Any Weather : These address numbers are made from thick ABS Electroplated Plastic, so they can be used in any weather, not easy to fade. Whether it is hot summer or cold winter, they work well. There are 3 sizes and 4 colors for you, so please choose your favorite color and size. If there is any issue about our product, please do not hesitate to tell us Easy to Use : These house numbers for outside are very easy to use. Just clean the surface you want to stick, then tear off the back protective film, stick the house number and press hard to make it stick more firmly.