Bests & Worsts Reviews from Amazon

This product does not do even the simplest function in its name. I placed the Model 50 "Unbreakable" Air Deflector on my wall heat register last night. When I woke up this morning, the plastic had melted (see my picture of it in the Customer Pictures), and the heater had not been running for several hours. If this product cannot even stand normal heating, it is completely useless to me. Fortunately Amazon will refund it and pay for return shipping, so 5 stars for their customer service on this incident. I would highly recommend against purchasing this item and attempting to use it on a heat register.