Features: Wide application: Can be applied to any hard, dry, smooth, clean surfaces, can be applied on your mailbox, window, door, car, truck, home, or business, any smooth surfaces Using tips: recommend to thoroughly clean the substrate to remove any dust, grease, or silicone before applying the adhesive. Specifications: Material: vinyl Size: as pictures show Color: as pictures show Package includes: 208 x Capital letter 208 x Lowercase letter 160 x Numeric and punctuation Note: Does not adhere well to textured mailboxes surfaces, we do not recommend apply this decal to a texture powder coated steel mailbox.