Size AA (Tex 35) beading thread contains 75 yards/68meters per bobbin. Size AA is a thin beading thread (0.09mm in diameter) suitable for size 15/0 and other small seed beads, for brick stitch, peyote stitch, square stitch and so on, and allows for multiple passes through larger beads.
It can be used with a size 12 needle or equivalent.  It is a silky, lightweight, durable beading thread. Made of nylon polymer, it is UV-resistant, with very limited stretch. For purposes of comparison, C-Lon is identical to S-Lon (Superlon) - made by the same manufacturer, but sold under different brand names.