Rapid and secure panel mounting. The Primacoustic Push-On Impaler dramatically speeds up the installation of your acoustic panels. Easy to attach to walls without causing serious surface defacement the Push-On Impaler features four elongated mounting slots for stud-mounting. You can also easily install the Impaler in plaster board sheetrock and masonry using Primacoustics triple-action Cobra Anchors (not included). Sharp protruding darts penetrate the back of your panel holding it securely in place. Each Impaler features a glue zone for applying a small amount of adhesive for added security perfect for mounting panels in high-traffic areas. The Push-On Impalers also allow you to easily align your panels in clusters or side-by-side configurations with exceptional accuracy. Please Note: The Primacoustic Push-On Impalers do not come with any mounting hardware typical sheetrock anchors and screws are required to mount each Impaler to your wall.