Model Dovetail Bar. Optical Tube Compatibility Celestron C8/C9/C11 Optical Tubes. Perfect size and has been pre-drilled wth holes for many SCT tubes. Designed for Celestron CG-5 mount. Also suitable foruse with Vixen GP and GP-DX mount (and their clones) and Celestron ADV-GT and also EQ-5 mounts.
eBay