SS is an aran (heavy worsted) weight yarn, not worsted weight, which is lighter. Older skeins have 4 plies, newer skeins have 10.
This entry should be used for all sizes of solid colors. Please customize your weight and yardage at the stash level. Thank you.
The size listed is the most common Economy size which has the largest color range. Other common skein sizes include: Regular 160 yards/85 grams and Jumbo 835 yards, 1 pound/454 grams).