Spirocore Medium Gauge Bass String — Set of 4 Bass Strings Tunes to G-D-A-E Orchestra Tuning. TRUE 3/4 104-106CM (40.5” – 41.5”) tuning length. “Red Wraps” have Red Silk in the tailpiece & Red Silk in the pegbox. So Sorry, but S0420 are sold in sets only. You may use Single Strings from S0300 Spirocore Medium series for individual strings. When not in stock wait times are 4-5 weeks.