The ADM V Series Dovetail Bar For 10" Meade Telescope fits all Meade 10″ OTA’s as well as the 7″ Maksutov. Uses existing accessory mounting holes in the OTA. No curved radius blocks are needed. Uses existing mounting holes in OTA. 18″ long, 1.72″ wide, .625″ thick, Wt. 14 oz.