Feature: 1. ABS MATERIAL: Made of premium ABS impact and weather resistant materials, the vent cover operates with a long service life. 2. AUTOMATIC OPERATION: When the fan of the range hood is turned on, the air door automatically opens, and when it is closed, the air door automatically closes. 3. EASY TO USE: Exhaust ventilation cover is very effective, easy to install, durable, suitable for RVs, campers, and homes. 4. PACKAGE INCLUDES: Exhaust hood damper that can be locked. Except for the ventilation cover, there are 10 screws for installation. 5. IDEAL REPLACEMENT: Wonderful replacement for the old and damaged parts, fine workmanship, attention to details, helps you improve the working efficiency Specification: Item Type: Exhaust Ventilation Cover Material: ABS. Package List: 1 x Exhaust Ventilation Cover10 x Screw