Size for Precision Front size: 460 x 250 mm Lifting distance: 40 mm Chinrest to headrest distance: adjustable from 150 mm to 190 mm Provides a precise fit for a range of optometry procedures Durable Construction Made from plastic, aluminum alloy, and stainless steel Electroplated finish for enhanced durability Rustproof design suitable for daily clinical use Adjustable Height for Versatility Height adjustment knob Chin rest height from bottom: 260 mm to 355 mm Accommodates users of different heights for reliable comfort Ergonomic Design for Comfort Curved forehead support plate Cushioned chin rest Ergonomically designed to minimize fatigue during extended use Ideal for clinics and optical shops Applications Ophthalmic refraction and imaging sessions Slitlamp examinations and retinoscopy Patient positioning and longduration measurements in clinics and optical shops