Premium Aluminum：The “Private Property No Trespassing” signs made of high quality rust-resistant aluminum. It can be used indoor as well as outdoor. Reflective Material: Our letters are visible and highly reflective under lighting conditions to ensure easy reading in the dark. Strudy and Durable : This metal sign is strudy enough and has excellent printing effect. Rust-proof, fade-proof, weatherproof. The pattern are protected from weather and graffiti. It can remain as new after years of use. Easy to Install：With 2 predrilled you can hang them from the surface including walls, gates, fences and poles. Warm Tips: Welcome! If you encounter any problems during the purchase process, please let us know, we will help you and make things right. Video Surveillance Sign/No Trespassing Sign Private Property Sign Size: 18 x 12  inchesMade out of  AluminiumReflective, UV Protected, Waterproof, Weatherproof and Fade Resistant.Up To 7 Years indoor & outdoor use.