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Inner Diameter 1/4 Inch Outer Diameter 5/8 Inch High Quality Material 18-8 (304) Stainless Steel and Neoprene EPDM Package Included 50 x Neoprene EPDM Bonded Sealing Washers 1/4 x 5/8 Inch Warranty MewuDecor hardware has the highest quality on the market
high fiex cable bundle shielded with foil and Coaxial for signal protection
STURDY GRINDER: Patented CeraPlus German ceramic grinding mechanism is harder than carbon steel
Built to withstand tough work environments
48 inch wires
Hanchen PD Meter Digital Pupil Distance Meter PD Ruler Pupilometer with Memory Function CE Certificate home_industrial_July2026 Inner Diameter 1/4 Inch OuterHanchen PD Meter Digital Pupil Distance Meter PD Ruler Pupilometer with Memory Function CE Certificate Product Features OperationIt is recommended to have a second person help you while testing. Put the PD Meter over your nose, as close to your eyes as possible. Then find the center of your pupils, the white line should be aligned with the center. The number displayed on the LCD screen is your pupil distance(Unit: mm). Please keep your eyes looking
