The product I received was of poor quality, with parts that were not the correct size and one side stuck. I had to sand the center section on both sides, which removed the matte appearance, leaving a shiny surface. Also, I sanded the guides on one of the sliding components. Three brown screw-on pieces with magnets required sanding because they were too long, and two of them were not properly finished. Sadly, the sanding is noticeable. After significant effort, the product now functions. I am giving it a neutral rating since I was refunded the purchase price.