Collecting listings has surprises
Description
These optical PD rulers are professional and flexible, so they will not easily to break.
. These frames are etched with a set of marks to provide an accurate reference point. Lightweight for easy and portable carry. Ergonomic design, accurate scale, small error. premium material for long time use
Features
-Nose bridge holds the ruler stationary and perfectly centered.
-Adopts precision production to the stable characteristics and high reliability.
-They help you to lengths of your optical frames.
-They are manufactured with professional technology to the high-quality of the product and can work for a long time.
-One size fits all. The PD check frames are universal and flexible.
-Color: As Shown
-Material: Plastic
-Size:18.00X2.50X0.10cm/7.07X0.98X0.04in
Optical Ruler