This overlocking thread set provides a durable, reliable polyester thread designed for industrial overlockers. Four 5000yard spools deliver plenty of material for volume serging and long runs, with a broad color range to match a wide variety of fabrics. Built for performance on speed, it helps produce consistent stitches, strong seams, and clean edge finishes. Key benefits tenacity polyester for strong, elastic seams that hold up under stress. Optimized for overlockers and sergers, delivering smooth feeding and stable tension across multiple threads. Low lint production helps keep your machine cleaner and reduces maintenance time. Colorfast performance to resist fading through regular laundering and use. Largeyardage format (4 x 5000 yards) lowers the need for frequent reorders and downtime. Key attributes Functionality: Overlocking/serging thread designed for edge finishing and seam construction on join lines. Compatibility: Suitable for industrial sergers and most overlock machines. Size: 4 x 5000 yard spools (total 20,000 yards). Material: 100% polyester. Performance: Consistent stitch formation, reliable feed, and durable seams on a range of fabrics. Color options (large selection) Black White Red Blue Cream Navy Blue (422) Purple Pink Green Grey Brown Olive Sky Gold Use cases Garment construction and edge finishing: Ideal for serging T shirts, activewear, and lightweight to midweight woven fabrics to achieve clean, durable hems and seams. Heavyduty or decorative sewing: Suitable for denim, canvas, and bags where strong seams and neat edges are required. Repairs, alterations, and home textiles: Effective for mending, hemming, and finishing curtains, cushion covers, and other projects that benefit from a professional serged edge.