These are commonly used for tasks such as reading, writing, or doing hobbies. This is especially for extended near tasks. Since there is a fixed distance between the lens and the object you are looking at, accommodation is required so you should use your reading glasses if you have one. This causes less fatigue because the magnifier rests flat on the page. However, it is not a hands free device, and it is not that portable. Children have and easier time using stand magnifiers.
This is an illuminated stand magnifier from Eschenbach which is designed like a computer mouse and is easy to use. This has an aspheric lens with a 5X magnification or 20 diopter power. It also contains LED lights for bright illumination.
Perfect for tasks where you need both hands like sewing, knitting, or other hobbies. This also provides a large field of view. Magnification is usually 2x but some have an additional bifocal lens of about 4x magnification. The cord that hangs it around the neck allows you to adjust the distance.
High powered stand magnifier
Hands free stand magnifier attached to a gooseneck lamp
This loupe magnifier for near task enables you to use both your hands for the task. this is good for writing, sewing or other crafts. It also comes in different magnifications from 2x to 4x and the higher the magnification, the nearer the distance from your eye to the object.
A magnifier that you clip onto your spectacles to help with tasks that needs the use of your hands. It comes in different magnifications but the higher the magnification, the nearer the distance of the reading material to your face.