Check the listing for details. SVBONY SV225 Adjustable Angle Alt-Azimuth Telescope Mount For Visual Astronomy. Condition: New. Listed at 159.99 USD. Product Description . SVBONY SV225 Alt-Azimuth telescope mount is the perfect visual astronomy travel companion and strong practicality. Lighr weight and compact design are convenient for customers to carry out. UNC 3/8 -16 thread specification is compatible with Celestron/Skywatcher/Orion/Vixen & most mainstream astronomical OTAs. Standard vixendovetail. You can use it with most telescopes. The newly added variable speed gear increases the torque, and the customer reduces the idle adjustment during use, which makes the operation feel more comfortable. The handle helps you position quickly and is easy to use and operate. 10KG load bearing makes sure you can have a smooth load operation even with the 122mm aperture SV550 OTA. Adjustable all-round viewing angle，observe as one pleases. Helical turbine drive supports 360° all-round adjustment, :-60° to +60° altitude adjustment, all-round visual adjustment angle to meet your visual observation needs. Digital scale mark is convenient for customer positioning and adjustment; quickly point to the observation target. Fine-tuning control lever is designed to meet the adjustment efficiency of customers in different scenarios. about svbony