Description This optic trial lens frame provides the ability to refract even the most difficult prescriptions and offers all the adjustments to ensure a proper and comfortable fit onto your patient. Made of lightweight metal and plastic, easier to use and easier to wear. Suitable for professionals. Features - Color: As shwon. - Material: Plastic and metal. - Size: Approx. 13.5 x 5 x 3cm. - Made from premium material and precise workmanship, practical and durable to use. - Left or right lens frame leg& rsquo; s length is adjustable. - Trail frame foot is telescopic. - Silicone nose rest for comfortable wear. - suitable for eyesight examing in spedtacles shops, department of ophthalmology in hospitals, schools and enterprises.- Color: As Shown.- Size: Size 4. Package Including 1 x pair of glasses