Unfortunately I am very disappointed in the product for numerous reasons. Shipping took almost 5 months and all I heard from the company was supply chain issues. Secondary, the product doesn’t work nearly as expected. It has dampened car traffic down some however the entire point of the product was to dampen the train’s horn from near my home. The product has done absolutely nothing for this and I am horrified that I spent a large some of money for see through plastic that doesn’t do much. Unfortunately I don’t suggest this product for anything for than a bit of traffic noise.