So Fine! #50 #403 Putty 550 yd. Spool
- Thread Weight: 50 wt./3-ply
- Fiber: Polyester
- Thread Characteristics: Lint free, smooth, and blends well
- Recommended For: Quilting and sewing
- Additional Uses: Bobbin thread
So Fine! #50 is a #50/3 lint-free and extra smooth all purpose polyester thread. Each spool has 550 yards. Excellent for Sewing, Serger, Bobbin Thread, and Quilting.