Personal Zoom Binoculars
Fitted with high performance prisms and multi-coated lenses for sharp images, this gives you exceptionally flexible magnification. With the push of a lever by your forefinger while looking, you can zoom from 10 to 30X without losing sight of your object - and then back out again. Weight only 9-1/2 oz. Lens size 7/8. This is really terrific and a fine value. Made by Carson Optics.