●The information below is per-pack only ●MATERIAL: Black Vinyl, High quality, sturdy exterior grade. 3 inch letters and numbers ●VERSATILE APPLICATIONS: These numbers can be used on art & decor projects, mailboxes, doors, walls, plaques, etc. ●SURFACE MOUNTING: When applying, the surface application temperature should be 50-85˚ F/ 10-27˚ C ●SELF-ADHESIVE: To apply self-adhesive back, ensure mounting surface is clean and dry before pressing sign firmly to surface to activate adhesive layer ●EXTERIOR GRADE: Once installed, material can handle wide temperature fluctuations in weather ●SIMPLE TO CLEAN: Material easily wipes clean with a damp cloth or sponge, making for hassle-free maintenance ●CONTAINS: Letters (A-Z), Numbers (0-9) & symbols