Ultra G.S.P. Thread

A super strong thread virtually unbreakableNew from Wapsi, Ultra GSP is stronger for its weight than steel and the best value GSP anywhere. Choose from 6 colors in 50 denier, about the diameter of 12/0 thread and with a breaking strength of 44 oz., is excellent for small flies and a minimum of bulk and great for spinning big deer hair and other large, demanding patterns. 50 yard spools.