So Fine! It's A Boy! 435 Poly 50wt is a high-quality polyester thread designed for bobbin thread quilting and sewing. This lint-free thread has a matte finish and smooth texture, making it ideal for blending in quilting projects. Loved by both longarm and home machine quilters, this thread is perfect for creating seamless and professional-looking stitches. With a length of 3280 yards, this 50wt, 3-ply thread in the charming 'It's A Boy!' color is a must-have for any sewing enthusiast.