Steel frame Magnifying Glass. Comes in 4 sizes – 50mm (S), 65mm(M), 75mm(L) or 90mm(XL).
Magnifying glasses have multiple applications. They can be used as a reading tool to magnify text or pictures, they can be used when undertaking an activity such as crafting to see detail if eyesight is impaired. They can also be used to teach about creatures etc by increasing the size so details can be seen. The principle of magnification can also be used with magnifiers.