Triangular Pyramid Bass Traps for Ceiling Corners, 4 Pack, Black | Corner bass traps with a 16.5 in triangular face and 12 in depth for trihedral ceiling corners in studios and home theaters.

Items work perfectly. Stopped corner slap immediately.

Great Bass Traps they're pretty Solid thick and heavy. They come vacuumed sealed so out of the box they won't just expand by themselves. FOLLOW THE INSTRUCTIONS, put them in water (Like a bathtub as shown in pictures) squeeze them like a sponge and they'll soak up the water and expand and take form. Lastly throw them in the dryer for about 15 minutes or so or use a heat gun or hair dryer to get em nice and dry. Then use whatever adhesive you deem appropriate as they are pretty heavy I recommend using something strong like Gorilla if these are permanent to the room. Sadly they don't come with any means to stick them which is why I gave them 4 stars. All and all GREAT product highly recommended! 💯👍🏽

This is a great way to acoustically treat your theater or any space that needs help with echo and sound bouncing off different surfaces. They are made of a very dense foam material. These were the first acoustic treatments that I put up. I did notice a slight improvement as soon as I put them up. Again. These were the fist things I put up in my room. And they were the easiest. They fit in the corners nice and utilize every space available to add more treatments if necessary. I would have given 5 stars but I feel they need a few more pieces of the double sided tape. One did fall but I added a few more pieces of my double sided tape and they haven’t come down since. I love that they fit perfectly in the upper corners of the room. You really have to look to see mine. The price was definitely worth it. It is a great quality product and super easy to install.

all good

The product arrived damaged. The set up process was a pain, I don’t have much room to soak and dry all 4 of the traps. The foam is CHEAP not worth 50 dollars in any universe. And to top it all off, nothing I did would get it to stick to my walls! I cleaned the area with rubbing alcohol, and used spray adhesive, didn’t work (it just absorbed into the foam). Cleaned the area again and tried double sided adhesive. The fell down in a day. I even tried gorilla tape, the fell off and damaged the paint on my walls. I have no clue how this product has any positive reviews. What a SCAM!

These things are very high quality dense foam. They almost completely removed the echo in our drum room

These are not as high density as one might hope / want for a bass trap, but fair enough for the price. The process of soaking them and letting them dry to expand them took much longer than expected. Three days in there was still a small puddle forming underneath. Mounting is easy enough if you have a tape or adhesive that sticks to foam. I had to cut cardboard and glue it to the foam in order to get it securely mounted but that may not be necessary, depending on your wall surfaces. Overall a decent buy for the money - they do help manage the low end in my small studio space.

Had box waves and needed to interrupt them for truer reference. They took care of the frequencies most problematic. You need to be very deliberate in how you glue and install them because the edges are susceptible to pinching and folding which can look less than perfect, if not carefully done. I used 3M aerosol delivered adhesive.

Kleber halten schlecht

Absolutely terrible. The units do not expand to size and are not good quality. Do not waste your money

Es material de muy baja calidad, llega empacado al vacio, comprimido. Al desempacarlo no se expande solo como otros productos. Se mira horrible, y aun que lo expandas, instalado no se mira como en las fotos del producto.

Absolutely garbage and waste of money. Cheap quality low adhesive foam. Buy real bass traps not these hoping they will work out, they won't.

bought these as they were the only thing on the market which suited my needs.Really not worth eht £70 price paid.