Package: Included pack of 4 pcs, Size 2x 6 inches, Clear words, easy to read by passengers. Material: waterproof vinyl sticker, outdoor use, waterproof, self-adhesive, sturdy, anti-scratch. Anti-theft Alarm：Visible warning for passenger camera in use legally and bad behaviors, potential criminal or thefts. Multiple Uses: Vehicle Camera Security Warning Dash Cam Signs-CCTV, Car, Van, Truck, Taxi, Mini Cab, Bus, Coach. Easy to Install：just peel off the backing paper can be easy to install on any clean and smooth surface，without a trace when removing.