The Headrest Mount and Arm Mount are two similar solutions for turning iPads into backseat video players. Both accessories are black in color, using metal, rubber, and thick translucent acrylic plastic to hold unencased or certain encased iPads on a flat, padded surface with a spring-loaded tension arm, attaching to one headrest with adjustable metal hooks. These hooks turned out to be the very best part of each design—completely stable on the…