Upgrade your outdoor sewing projects with PremoBond Bobbins Bonded Polyester Anti-Wick Thread BPT Size 138M (Tex 135M) Black 72-pack. This bonded polyester thread features continuous filament construction for strength and durability, making it ideal for outdoor and marine applications. Each pre-wound bobbin holds about 26 yards of thread, and the pack includes 72 bobbins for extended use. The thread is twisted and plied for extra resilience, resists mildew and UV damage, and offers an average breaking strength of 20 lbs. Designed for weather resistance, this black thread is perfect for heavy-duty sewing tasks, from patio decor to marine canvas work.