Farpoint 1.25" diameter × 1" length — Thread-In Eyepiece Extension Tube specialty whether your bar uses 1/2″

whether your bar uses 1/2″ or 5/8″ leveling screws

Not sure they match your tube

Focusing is easy with JMI MotoFocus - Celestron CPC 1100

"name":"How do I know if my JMI Wheeley Bar uses 1/2 inch or 5/8 inch leveling screws

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Farpoint 1.25" diameter × 1" length — Thread-In Eyepiece Extension Tube specialty whether your bar uses 1/2″Farpoint 1. 25" Thread In Extension Adds 1" of back focus so your eyepiece or camera can reach sharp focus. The Farpoint 1. 25" diameter 1" length Thread In Eyepiece Extension Tube threads into a 1. 25" eyepiece or focuser drawtube to add a fixed 1" of reach. Use it when an eyepiece, diagonal, or accessory sits too far inside the focuser to come to focus. Specifications Barrel diameter 1. 25" Extension length 1" Attachment Thread in threads into a 1.