Columbia Silver Ridge 221 glasses are designed for men and women featuring spring hinges and skull temples. The Columbia Silver Ridge 221 glasses model is made of other and manufactured in China.
- Gender: Unisex
- Age Group: Adult
- Shape: Rectangle
- Hinge: Spring Hinge
- Temple: Skull
- Bridge: Adjustable nose pads
- Case: Hard case included.
- Country: China
- Category: Glasses
- Edge type: Beveled
- Material: Other
- Rim: Full Rim
- Warranty: 2-year warranty.
- Product Group: Rx-able eyeglasses
Default size:
- Screw to Screw: 121 mm .......... Distance all the way across the frame front, from hinge to hinge.
- Eye: 51 mm .......... Horizontal width of each lens at its widest point.
- Bridge: 17 mm .......... Distance between the lenses at the narrowest point.
- Temple: 135 mm .......... Length of the temple from hinge to ear tip.
- B "Height": 25 mm .......... Vertical height. Multifocal lenses require a minimum 28mm "B" measurement.
- ED: 53 mm .......... Diagonal measurement of lens.
- Circumference: 132 mm .......... Lens circumference.

