Diameter (optional) - 55mm , 65mm , 75mm , 57mm. Thickness - 2mm, size refers to Diameter X Thickness. Material - glass. Shape - Plano You will get of transparent watch replacement glass lens, each 2mm in thickness, with a variety of diameters available for your preference. Transparent Flat Lens for Display Enhancement, Diameter 55 65 57mm Small Clear Lens, Thickness 2mm Round Flat Lenses 1pc

Specification
Thickness - 2mm
Material - glass
Package includes - 1pc * Flat glass lens
Usage - Optical
Structure - Flat

Amiable Notification
Allow for a ±0.2 inch measurement error when done by hand.
Be mindful that colors can slightly vary on different screens.