Optical Trial Lens Frame Optometry Universal Fully Adjustable Optical Lightweight Trial Lens Frame for Optometry and Optician Glasses Testing and Fitting

Features: Precisely adjustable: independent pupil distance adjustment (50-80mm) ensures accurate alignment of lenses and achieves a personalized training experience. Comfortable fit: adjustable frame length and angle to adapt to different head shapes, stable to wear, no discomfort for long-term use. Lightweight and durable: black simple design, metal + plastic material, only 61g, reducing training fatigue. Flexible combination: each side can accommodate 5 lenses, easy to switch, simulate a variety of visual scenes, and enhance optical understanding. Stable and reliable: knob adjustment prevents accidental sliding, screw fixation ensures stability for experiments and demonstrations.   Package includes: 1×Trial Frame