Furniture has been around for as long as civilization, yet somehow a lot of it still isn’t comfortable. Wobbly legs, wheels that don’t turn, protrusions at exactly shin height: the list goes on.

Also, due to managers trying to save a few bucks, many of the worst offenders are found in offices, leading to back and neck pain among employees. Some better designs are now available, including sit/stand desks, but many workers are still forced to ruin their posture and health with inadequate computer desks.

One example of this is a desk that simply isn’t deep enough to accommodate your forearms as well as all the stuff on it: with no support, typing or even using the mouse for any length of time is just asking for trouble. Luckily, you can avoid wrist pain and strain on your neck just by spending a dozen bucks or so on this screw-on armrest.

It can be attached to either a chair arm or desk as long as it’s less than 2 inches thick and it has an overhanging lip of about 1″ wide.

It’s easy to knock loose by accident, but plenty strong enough for the weight of your arm and, though you can rotate it from side to side, won’t by itself slip out from under your arm.

It can’t be expected to last forever, and the plastic coating on the top feels cheap.

Still, this is exactly what you would expect at this price, and considering how much pain small but constant strains on your wrists and shoulders can actually cause, it is a fantastic deal.