Features: Large quantity for share: The package comes with 100 screwdrivers for glasses, which measure about 1.77 inches/ 45 mm in total length, screwdriver's head specification is SL 2.0 mm, large quantity and portable size can meet your daily use and share needs. Practical and useful: This mini screwdriver set is an ideal repair tool for mechanical, electrician, electronics technician, assemblers, etc., which can be applied for eyeglasses, watches, jewelry, keyboards, HDD, making your operation more efficient. Specifications: Quantity: 100 piecesMaterial: plastic, 45# steelColor: blueSize: Overall length: 1.77 inches/ 45 mmScrewdriver head specification: SL 2.0 mmPackage contents: 100 x Mini screwdriversWarm notices: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays.