There are two standard methods of installing acoustic panels for your noise control solutions. Impaling clips and Z-clips. The impaling clips are the easiest as they requite less precision and labor but are permanent and the removal of the panel may due some small damage to the wall surface. Z-clips allow for removal/replacement of the panel but require precise measurements in installation and may take 2x as much time to install. In our opinion, acoustic panels rarely (if ever) require replacement and when they are, are usually done in concert with an entire revamp of paint and/or drywall hence the impaling clips are the best method.