This is a very high quality foam, which is incredibly white and dense. The foam has no smell, and as it is made in the US, I don’t have to worry about what chemicals were used and if they are safe. I know they are going to last, so while they are expensive, it’s worth it for a studio. Knowing that they won’t yellow, turn to dust, and need to be replaced is worth the price. I will be buying more products from this company.