The RAM-B-121-MP1U consists of a 90-degree yoke clamp base, double socket arm and RAM® Multi-Pad™. The RAM® Multi-Pad™ is a rugged and efficient document holder with a spring-loaded clip for single documents, a slot for inserting 5" notepads, and built-in magnets at the bottom for securing the included RAM® Pen. The included yoke clamp base can mount to any rail from 0.625" to 1.25" in diameter; ideal for Cessna and other aircraft yokes. The integrated ball and socket technology allows you to adjust the the RAM® Multi-Pad™ to the perfect viewing angle.