Super Bobs from Superior Threads - A package of 12 bobbins prewound with 70 yds of MasterPiece thread. MasterPiece is a 50 wt. 2-ply Egyptian-grown extra-long staple cotton thread. MaterPiece bobbins create precise stitches, have very little lint, and lasts longer due to precision winding. These bobbins hold 30-60% more than a self-wound bobbin.
Each bobbin has 70 yds of #186 Blanc (white) thread.