very satisfied with this purchase,
I to purchased 3 Pieces of this product after entered to clean room with strong amplification of low frequencies,
I decided to order the bright gray color that blend well with the walls corners and not "diminish" the room size.
The package came when two bass trap are combined with one another precisely ,without spacing, With accurate cutting dimensions, so that the bass trap face can not be damaged,
after easy installation (because the product is lightweight) it was easy to hear that the room had "dried up" and that it was more pleasant to work and edit music,
this bass trap can compete with more expensive one and I happily recommend it.
please note that a week after the installation I noticed that my wife liked to come to the room more to hear music (than in the living room) you Decide whether it's good for you or not :)
thank you.