Compact, extra-strong magnifier in self-storing case for jewelry, watches, fine detail work * Enlarges text/objects to 3000% original size; 20mm optical-quality glass lens, scratch resistant * Built-in super-bright white LED light - auto on/off when case opens/closes * Durable thermoplastic case - just 2" x 1-1/2" closed, weighs only 1 oz; nickel-plated steel keychain * Lights for up to 60 hours on included button-cell batteries, easy to replace