Celestron extremely compact and rigid tripod, the locked Triagle Tripod: 5/8/90 for the c5 & c8. You can mount either one of these instruments directly onto the tripod by means of a center 1/4 * 20 bolt for terrestrial observing. For astronomy the Celestron Equatorial Wedge goes between the telescope and the tripod. The tripod legs (black, 2") fold up-and-over the center of the tripod for easy transportation, and it has "spider" tension bars attached for each leg. I'm asking $160.00, will discuss shipping.