Covers ceiling vents at night to prevent moonlight or street light from shining into RV sleeping quarters. It easily mounts to the ceiling and quickly retracts into its space-efficient housing to provide natural light inside the RV during the day. Made of a lightweight, durable vinyl with a reflective finish, it also reflects heat. Opens to 14-1/8" x 19".

 PROP 65 WARNING: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling. For more information, visit www.P65Warnings.ca.gov