This is a degreasing cleaner that came with a Cellstar drive recorder. When installing the camera, double-sided tape is used, but if you wipe the surface with this cleaner before applying the tape, it will adhere cleanly. Although it is not exclusively for drive recorder installation, you can use it for other purposes as well, but please refrain from using it on the human body. Basically, it is used to wipe away dirt, oil film, dust, and cigarette tar from the vehicle's body on the adhesive surface. The size is 140 x 200mm, and there is one sheet included. The product will be packaged in a nylon bag to prevent water damage, and then enclosed in an envelope. Thank you.