The designs are spacious enough to fit over prescription glasses too, measuring 17 x 17 x 4cm. Looking for an old-school magnifying glass that you can keep in your pocket for on-the-go sleuthing?

The screws that go in your phone are minuscule, and a magnifying glass is really handy if you want to check out the detail on your 3D prints. While this is easy if you have good eyesight and you ...