The Magic Arm Mounting System is a durable solution to mounting devices and switches. The Magic Arm can extend 20.5 inches and hold up to 5 pounds. Devices attach to mounting plates (shown below) with your Velcro or screws. Easy to adjust and articulates in 3 areas to allow for a variety of mounting positions. Mounting plates assortment includes round, triangular, and rectangular plates to fit a variety of switches and devices.