Check the listing for details. 50mm Fine Adjustment Focus Knob for Celestron NexStar Evolution 6. Color: Black, Condition: New. Listed at 11.79 USD. Created with Eselt - Templates for eBay Sellers Give us a call Send us a message Created with Eselt - Templates for eBay Sellers Our Store Seller Profile Feedback About us Contact Created with Eselt - Templates for eBay Sellers 50mm Fine Adjustment Focus Knob for Celestron NexStar Evolution 6 This knob is larger than the stock knob allows for fine adjustments and attaches directly to the stock knob. Honeycomb design Allows for fine tuning adjustments Designed and Made in USA Created with Eselt - Templates for eBay Sellers Payment Shipping All orders ship the same or next business day Monday-Friday Returns Free 30 Day Hassle-Free returns, we want you to be 100% satisfied! Created with Eselt - Templates for eBay Sellers Links Our Store Seller Profile Feedback About us Contact More items Are you looking for something similar? See our other items! Show more items Contact Give us a call Send us a message