Revamp your sewing game with our premium Spool Caps Set! Crafted from durable plastic, this set includes 1 cover and 1 stopper, perfect for Singer and Butterfly heavy machine sewing. Say goodbye to old, worn-out accessories and hello to smooth, hassle-free threading. Upgrade your sewing machine with this essential kit and keep your threads in check. Package includes 1 set of spool caps. Sew smart, sew smooth! ==== FEATURES: ==== (A) **Thread-Taming Technology**: Our innovative spool caps are designed with advanced Thread-Taming Technology, ensuring your thread stays securely in place. Say goodbye to frustrating thread jumps and tangles, and hello to smooth, uninterrupted sewing sessions. Perfect for both beginners and seasoned seamstresses, this feature guarantees a hassle-free sewing experience every time.

(B) **Precision Unfolding Mechanism**: Experience the magic of our Precision Unfolding Mechanism, which meticulously guides your thread to unfold correctly as you sew. This cutting-edge design prevents thread bunching and breakage, allowing for flawless stitches and professional-quality results. Whether you're working on delicate fabrics or heavy-duty materials, our spool caps deliver consistent performance.

(C) **Universal Compatibility**: Our spool caps boast Universal Compatibility, making them the perfect addition to any sewing machine. Crafted to fit a wide range of spool pins, these caps are versatile and easy to install. Upgrade your sewing toolkit with a product that adapts to your needs, providing stability and efficiency across all your sewing projects.