This high-quality wedge is designed to support Celestron fork mounted Schmidt Cassegrain Telescopes up to 11".  The HD Pro Wedge provides a heavy duty, stable platform that is perfect for astroimaging and guarantees minimal vibration. Purchased new from Celestron just 4 months ago.  Lightly used, in original box with manual.  Still has most of 2-year warranty left.  This wedge currently sells new for $510.  Will sell to a Denver-area buyer for $300.  I won't ship this item, but I will meet buyer anywhere in the Denver metro area.  Model #93664.  If interested or questions, please contact me at 303.521.0437 or at cthamlin@comcast.net.  Thanks for your consideration!