5550B Bobbins - 2pk (Class 17/18)

Why You’ll Love It: If you’re running a Class 17, 18, or 5550B Cobra sewing machine, you’ll want a few of these bobbins on standby. Whether you’re swapping threads mid-project or just stocking up so you don’t have to stop and rewind, these do the job and keep your machine stitching smooth and steady. Key Specs: Compatibility: Cobra Class 17, Class 18, and 5550B machines Quantity: 2 bobbins per pack Fit: Precision-made for consistent tension Best For: Ideal for folks who do production work, multitask with thread colors, or just hate pausing mid-stitch to rewind. Always good to have extras in your toolbox.