Explore Scientific Replacement Cradle Ring Set for Doublet AR Series 152mm Telescope. The Explore Scientific Doublet 152mm Telescope Replacement Cradle Ring includes the intermediate ring and a slotted carry handle while the second ring adds stability until you're ready to use it. The Explore Scientific Cradle Ring Set for Doublet SCT Series 152mm Telescope maintains the same 6.1" diameter and 154mm length as the original ring set. When you're ready to move out use the extended handle to gently raise the OTA and remove it to allow for transport to a dark sky location. You'll be ready to mount your brand new Explore Scientific Doublet 152mm Reflector Telescope in no time Specifications for Explore Scientific Replacement Cradle Ring Set for Doublet AR Series 152mm Telescope: Manufacturer: Explore Scientific Condition: New Package Contents: Explore Scientific Replacement Cradle Ring Set for Doublet AR Series 152mm Telescope Explore Scientific Replacement cradle ring set with a slotted carry handle for Doublet AR Series 152mm Telescope. Inside Dimensions = 6.1; 154mm