Nymo Cones are 3 oz. -OO has the most at 4852 yds., F has the fewest: 1049 yds. The rest are somewhere in between. n nNymo is a very popular nylon beading thread used for loom and off-loom beading alike. It is flat and threads into the flat eye of a beading needle easily. Run thread through beeswax for best results. n n"OO" is finest (for beads 18/0 and smaller-#15 needles); (- -) n n"O" (18/0-13/0-#15,#13 needles); (-) n n"B" (for 13/0-11/0-#12,#10 needles); (+/-) n n"D" (for 11/0 and larger beads- #10 needles); (+) n n"F" is the thickest (++) n