Reduce Echo Reverb
They reduce flutter echo well, and subtly tone down reverb.
Place these on hard surfaces to get rid of unwanted reflections and flutter echoes that can annoy. You can use them in your home recording studio.
Full Expansion
After opening the bags, the foam will begin to expand and recover its original volume.
It takes roughly a day or two for the pieces to fully decompress, but if you are impatient, you can run water over the pieces.
Nicely Cut Edges
They have a pretty cool design. The pyramid design helps break up the acoustics a bit better.
They look stylish and are the good choice to decorate your recording studios, control rooms, offices home studios, home theaters, home offices,etc.