I had a 50 year old metal version. It rusted over the years and it was difficult to get it in the right shape. Ordered a 5 inch model to get around doors when laying the floor. While it works, I should have lasted longer. The only real complaint I have is that neither end fits snugly against the wall. There is about 1/2 inch on each end with no fingers. I saw it in a picture before I bought it but didn't realize it would be such a big problem as it is. My old metal dead space was less than 1/16 inch. It keeps its shape very well when you fix it. Worth the money to buy.
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