Description: Second-row passengers can add another dimension of convenience to using personal computer tablets on the road with a Universal Tablet Holder. Tablet holder, single. Tablet holder, without usb pwr source. Back-seat passengers can easily use their tablets on the road with this Universal Tablet Holder. It securely holds a tablet against the front seatback in a choice of Portrait or Landscape orientations- attaching to the driver- or front-passenger-seat headrest posts. Universal Headrest Tablet Holder.