If you own a Singer 9960, 9970, or 9985 sewing machine, this bobbin case and bobbin set is an essential backup to have on hand! The package includes one high-quality replacement bobbin case (part #416397501) plus 10 plastic bobbins - everything you need to keep your machine running smoothly. The bobbin case is brand new and built to the same specifications as the original, ensuring proper thread tension and smooth operation. Having spare bobbins means you can wind multiple colors ahead of time and switch between projects without constantly rewinding. The plastic bobbins are durable and won't dent or damage like metal ones sometimes can. This is one of those sewing supplies that every serious sewer should have in their toolkit - when your bobbin case gets worn or damaged, you'll be so glad you have a replacement ready to go. It's also perfect if you need extra bobbins for organizing different thread colors for large projects. The quality matches what you'd expect from Singer parts, so you can trust it to work perfectly with your machine. Whether you're a professional seamstress or a hobbyist who loves to sew, having this backup set ensures you'll never be interrupted mid-project by bobbin issues again!