Wall installation hardware for acoustic panels. Include 4 Z-clips. Enough to install 1 panel. For a clean installation, use our Z-CLIPS with your DIY acoustic panels. These clips will give a secure, fast and durable installation with minimal wall damage. Each kit include 4 Z-CLIPS. Enough to install 1 (2x4) or 1 (2x2) panel. 2 clips go of the wall and 2 go on the back of the panel.