Reliable Thread Control for Everyday Fly Tying A dependable tying thread should hold materials securely without creating unnecessary bulk or breaking when tension is applied. This 120D polyester filament thread offers a practical balance of strength, smooth handling, and controlled material grip. Its lightly waxed finish helps feathers, dubbing, and synthetic materials stay in position while you work, reducing unwanted movement and unnecessary wraps. With approximately 1 lb of breaking strength, it is a versatile choice for tying nymphs, dry flies, and streamers with standard fly tying bobbins. Key Features Balanced Strength and Diameter — Provides dependable tying tension while helping create cleaner, less bulky fly bodies. Lightly Waxed Finish — Improves material grip, making it easier to secure dubbing, feathers, and synthetic fibers with controlled wraps. Smooth, Consistent Handling — Feeds evenly through a standard fly tying bobbin and helps reduce unexpected thread breakage. Versatile 120D Size — Suitable for a wide range of everyday patterns, including nymphs, dry flies, and streamers. Organized Color Sets — Available in bright and dark assortments for different fly patterns. Specifications Material: Polyester filament Thread Size: 120D Breaking Strength: Approximately 1 lb Finish: Lightly waxed Length: 250 yards per spool Package: 8 spools per set Available Options: Bright Color Set and Dark Color Set Compatibility: Standard fly tying bobbins Recommended Uses: Nymphs, dry flies, and streamers