Good-Lite Yoked Prism Frame with Elastic String, 48 mm PD

Description

Yoked Prism Frames with elastic string are available in three lens sizes:
38 mm for Pediatrics
45 mm for VTE (Italy) Lenses
48 mm for Adults.
Comes with comfortable and adjustable nose piece.
Comes with large thumb screw on each side so that each prism can be secured.