The 123M 10X06 is a 10 inch x 6 inch 2 way baseboard 1/3 inch fin spaced air register used for wall or ceiling openings. The stamped face allows for two way air deflection. This patented Smooth glide technology ensures rattle free and quiet airflow from your central air system. Smooth glide also provides for smooth opening and closing of your back dampers. This high quality product will ensure years of continuous use.