This adjustable optical trial frame is designed for optical lens placement, lens comparison and routine lens measurement accessory use. The frame supports PD adjustment from approximately 50–80 mm and features adjustable bridge, temple length and angle settings for flexible positioning. The multi-slot lens holder structure allows multiple trial lenses to be placed on each side, helping make lens switching and comparison more convenient. The lightweight metal and plastic structure is practical for repeated handling in optical shops, lens service counters and fixed desktop workstations. Package includes 1 adjustable optical trial frame. Please confirm the final adjustment range, package size and frame weight with the actual supplier before shipment.