Made of technopolymer construction that will not rust or rot. This inner cover features 2" high-density EPS foam with an R-10 insulation value. As a year-round option, it helps retain heat in winter but minimizes heat in summer (meaning less stress on bees). 1.5" center hole for ventilation and optional feeding, as well as upper entrance options. Simply too many features for the average catalog entry!
I live in northeast Ohio, so this is perfect for our climate. It was very easy to install, and the directions are great. I will update if any issues after I open my hive in the spring.