The GoPlatform is a laptop/projector tray that mounts to a photo tripod via Arca Swiss, 3/8"-16, 1/4"-20 or 5/8" when attaching to a C stand. You can securely mount your laptop with the included tie down strap. The lightweight aluminum tray is vented to allow for better air flow. The outer edge of the tray also includes a safety lip. The GoPlatform fits 13 inch and 15 inch MacBookPro laptops.