Baseball sized (9″ circumference; 2.86″ diameter), but soft like a softball.
• Individual balls come attached to a 12 ft string
Comes in 4 font sizes and one ball (MB1234) has all four fonts.
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Baseball sized (9″ circumference; 2.86″ diameter), but soft like a softball.
Baseball sized (9″ circumference; 2.86″ diameter), but soft like a softball.
• Individual balls come attached to a 12 ft string
Comes in 4 font sizes and one ball (MB1234) has all four fonts.
| Brands | Bernell USA |
|---|
The Prism Bar Holder Kit combines a prism bar holder with two horizontal prism bars. The handle holds two horizontal prism bars side by side to get a quick estimation of a prism prescription.
The prism bar set includes the holder along with 2 horizontal prism bars. The prism bar holder can be purchased by itself.

The Combination Horizontal Vertical Prism Bar provides accurate measurement of ocular deviation. This new combination prism bar resolves the problem by having the horizontal prism bar slide up and down in a channel affixed to the vertical prism bar.


These Yoked Prism Frames come with an elastic string and lens sizes: 38 mm for pediatrics . This frame also come with a soft adjustable nose piece. Large thumbscrews are on each side so that each prism can be secured.
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