Hey there, sewing friends! Running low on bobbins or just want some spares on hand? This handy 10-pack of clear plastic bobbins is exactly what you need. They're the official part #163131 (also known as 506417) and work as perfect replacements for a ton of Singer sewing machine models. Seriously, check the list - it covers popular ones like the 1000 Futura, 1000G, 1040G, 290, 290C, 600, Touch & Sew models, and dozens more. They're transparent so you can easily see how much thread is left, which is super handy mid-project. Made from durable plastic, they fit smoothly and hold standard thread weights just right. Whether you're quilting, mending, or crafting, having extra bobbins means less stopping to rewind and more time sewing. Keep a pack in your sewing box - you'll be glad you did when you're in the middle of a big project and run out. Affordable, practical, and saves you a trip to the store!