La-Z-Boy, Oakridge Comforts, Collections Etc and WalterDrake are some brands of chair arm protectors. WalterDrake sells chair arm protectors by Oakridge Comforts on its website, WDrake.com, and sells its own brand on Amazon.com.
The La-Z-Boy chair arm protector sells as a set of two that includes a single headrest cover for roughly $39 on QVC.com as of 2015. OakRidge Comforts has several chair arm protectors for sale on WDrake.com. Some are attached to chair protectors, and some are chair arm protectors that double as organizers, with pockets for remotes, reading material and sundry items. The organizers retail for about $17.
Similarly, the Collections Etc chair arm protectors on Amazon.com have pockets for organizing and storage. Sets of two sell for approximately $22. The WalterDrake chair arm protector on Amazon.com is leather and sells for roughly $15.