The Carson CL-65 2x/3.5x MagniFlex LED Lighted Hands Free Magnifier is a handy little unit for attacking that small work like stamp or coin collecting, entomology, or reading small manuscript. It comes with a handy "C" clamp that can be attached to a tabletop for "hands-free" examination of objects. The arm is flexible to configure to your viewing needs. The 2x lens yields a contrasty and clear image-sharp and bright. There is also a 3.5x power spot for viewing fine detail. The three LED illumination is great for low-light scenarios such as libraries and archives. It operates on three "AAA" type batteries (sold separately) or the included 4.5V DC adapter.