They are simply wonderful. My info inserts really do a good job to minimize the band music that echoes up the brick wall and into my living space her in the third floor. The genius who implemented the squishy white tubing made it easy to get the snug fit needed whether it be sound, or cold coming in or air conditioning leaking out. Each and everyone on the team told me the truth, no hype. Even the Co. Who delivered was A+. Can’t say enough good things about you all, you have my heart felt recommendation! I wish you ALL the very best. Sincerely, Harriet (Boo) Millett