A keyboard wrist rest is a cushion or pad that provides support for the wrists while typing. It can help to reduce pain and discomfort, and improve posture. A good keyboard wrist rest should be firm enough to provide support, but soft enough to be comfortable. It should also be the right size and shape for your keyboard and your hands.
There are many different types of keyboard wrist rests available, so you can find one that fits your needs and preferences. Some wrist rests are made of memory foam, which conforms to the shape of your wrists. Others are made of gel, which provides a cooler and more comfortable surface. Some wrist rests even have built-in features, such as a palm support or a massaging surface.