·  5 diopter (2.25X magnification) glass lens.
·  Even, shadow-free light under the magnifying lens with 22-watt T5 circular fluorescent tube 
   will make it easier for you to see and enjoy the activities longer. 
·  All metal housing mounted on a spring balanced arm that stays set in any position.
·  Clamps easily and securely onto most flat surfaces up to 65mm thick.
·  Dust-proof cover for lens protection.