The Pocket Map Magnifier with plastic construction may help to reduce eye strain. Illuminated Magnifier is light weight as well as very functional. The Pocket Map Magnifier with plastic construction may help to reduce eye strain. It can be used for close inspection of items like map, circuit boards, hallmarks, stamps, coin collectors, hobbyists and collectors of Antique Styles. With 6 LED and ON/OFF switch, it is ideal for reading assistance in low-light conditions. Compact LED Light Magnifier is convenient for your home, office and travel. It works with 2 x AAA batteries (not included). Magnification: 4X Lens Size: 6.2cm in diameter Total Size: ~18.7(L) x 8.4(W) x 1.8(H)cm Magnification: 7X Lens Size: 4.8cm in diameter Total Size: ~17.2(L) x 7(W) x 1.9(H)cm Weight: 110g