Package: 1pc of binocular ophthalmic flipper training tool device/gear with 4 lenses for confirmation test. Dipoters: +/-2.50, power marks printed on the lenses' surface.
Easy to Use: 4 glass lenses mounted in the plastic frame. It has a clean, practical design that's easy to use and helps you take accurate measurements without hassle.
High Quality: Precise lens power, professional technical medical instrument. Made from top materials to be durable and dependable, perfect for regular use, lab tests, or eye care professionals.
Comfortable to Hold: The handle is shaped to fit your hand well, so you can use it for a long time without feeling tired or uncomfortable.
Clear Readings: The lenses and frames are thick and solid, with large, easy-to-see numbers close to each lens. This helps you get clear and correct measurements.