Fade and impact resistant plastic. Cut-out: 3-1/2 in.D. O.D. is 4-1/2 in. D. 1/2 in. O.D. air vent.
Prop 65 Warning
WARNING: This product may contain one or more chemicals known in the State of California to cause cancer and/or birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov