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Do not base your order on the picture presented.
The Worth 4-Dot Attachment fits on your Welch Allyn or Keeler transilluminator and supports Worth 4 Dot testing using red/green goggles.
Compared to conventional flashlight versions, the Worth 4-Dot Stereo Test attachment does not require cumbersome flashlight units or D batteries.
Use with red/green anaglyph adult glasses one of our Children's Fun Frame anaglyph glasses.