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• Universal Trial Frame Ophthalmic Instrument Optical Tool Classic Design Features: *Provides an acceptable and comfy wearing experience, could be adjusted *PD Adjustment Range: Binocular PD: forty eight ~ 80 mm; Left or Right PD: 24 ~ forty mm; Minimum Scale Value: 1 mm *Lenses could be turned around 360° within the body *Number of lenses that may be inserted within the left or right body on the identical time *Axial scale increases counterclockwise along the body with a 5° scale distance Specifications: Color:Black +Silver Size:15*6*3 Range of PD adjustments:PD of both eyes: 48 ~ 80mm;left or correct PD: 24 ~ 40mm;minimum graduated value: 1mm Dividing disc axial graduation: Left dividing disc:120°~0°~135° Right dividing disc:45°~180°~60° Inner diameter of lens frame:32 Degree of lens rotating around optical ax is within the lens frame:360° Nonparallelism between lens&;optical ax is and lens frame&;s geometric a xis:≤2° Non-concentricity between lens&;optical middle and lens frame geometric center:≤0 Displacement of lens in relation to put of lens frame geometric center:≤0 Range of nose relaxation adjustment: Length:0 ~ 14mm; angle:0° ~ 30° Range of left or correct lens frame leg&;s size adjustment:98 ~ 135mm Maximum interval between left and right lens frame legs:200mm Material: lightweight metal or plastic Package Included: 1pcsTrial Frame Note: 1 The genuine coloration of the article could also be slightly varied from the pictures shown on website brought on by many points similar to brightness of your monitor and light-weight brightness 2 Please enable slight guide measurement deviation for the information

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