96Pcs Professional Sewing Thread Kit, 48 Colors 400 Yards/Spool, [Top Durability with 4-Ply Tight-Twist] AAA-Grade Polyester Thread with Prewound Bobbins, Sewing Thread for Hand & Machine Sewing. [Unbreakable Sewing Thread = AAA-Grade Polyester + 4-Ply Tight-Twist Tech] We've pushed durability to a whole new level.
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