A-clips are used to attach to and adjust portable video screens made from lightweight square aluminum tubing. The swingbolt allows for a gentle lift to prevent damage to the screen frame. The eyenut on the swingbolt allows for convenient adjustment to achieve a level screen position. Attach the A-clips to your screen frame, snap the screen material over the clip body, and the screen is ready to fly. Use #16 steel baling wire to secure the leveling feature for permanent applications.