For this clip to work the solar panel must have a minimum 20mm return lip on the underside of the frame. This innovative system is designed specifically to keep all birds from getting under solar arrays, protecting the roof, wiring, and equipment from damage. A typical solar panel is approximately 1.6m tall and 1m wide, on a typical panel one should use 3 clips on each long edge and 2 clips on each short edge. See the diagram attached to this product listing for more details and an example of a typical installation. Where to Use: Rooftop solar panel arrays Target Bird: All species Bird Pressure: All levels Material: U.V. stabilized Nylon Installation: Wire mesh is bound to solar panels using solar panel clips Expertise Level: Easy STEP 1: Place clips every 18 inches. Slide the clip onto the edge of the panel support bracket. Slide as far outward as possible so the clip is all the way on the lip of the panel. STEP 2: Set the wire mesh screen in place. Make sure the fastener rod comes through the screen at an upward angle as to keep downward pressure on the screen, pushing it towards the roof. STEP 3: Slide the disk onto the shaft of the clip assembly until snug. Make adjustments to the screen as necessary. Tighten the disk to panel edge. Include a 75mm (3inch) overlap of the mesh when installing the next section. STEP 4: Cut off any excess mesh screen sticking over the top edge of the solar panel array. Cut of the clip assembly rod flush with the exterior of the speed washer. Use either our budget or professional wire cutters NT119 or NT120 respectively. An innovative system designed specifically to keep birds out from under solar arrays. Patent pending plastic clips are UV stable and won't scratch anodised frames of solar panels. Clips recommended every 450mm (18 inches) 2 clips on short edge 3 clips on long edge. Clips bind the mesh to the panels without drilling holes or damaging the system. Designed to fit our Solar Panel Mesh (WM132). Nearly invisible from the ground. A new product that is fast easy & highly effective making solar panel exclusion straight forward.