This optical trial frame is designed for vision testing and optical fittings. It features a sturdy black main body with silver metal adjustment parts. The interpupillary distance is adjustable from 48 mm to 80 mm. It has a stainless steel card slot and circular lens holders with a 32.5 mm inner opening. Each side can hold up to 4 lens inserts. Clear scale markings are printed on the rings for astigmatism axis measurements. The frame weighs only 76 g, reducing pressure on the nose and ears. It includes curved temple arms and adjustable nose pads for height and inclination. Multiple precision knobs control temple tilt, interpupillary distance, and astigmatism axis fixing. Suitable for optometrists, opticians, and vision care facilities.
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