These frames are exactly what I was looking for. The frame is plastic but sturdy, and fit my records very well. I agree with some of the other reviewers that there was some extra space inside the frame, but not to the point of ruining the finished product. Also, the back of the frame is very secure, so it is highly unlikely the record will shift once put in place. There are four angular "levers" in each corner on the back, as well as four wedges that sit underneath the edge of the frame on each side. It took a minute to figure out how to remove them, but just press down each one, gently pull the frame and take them out. Not too difficult. To hang the frame, they placed a round hook on the cardboard, but I plan on using the holes provided in the wedges. Sorry if my terms are not making sense, but I think you will understand if you purchase the product!
Overall, very glad I bought them!!