RELIABLE TAIWAN-MADE QUALITY: Crafted from durable plastic that resists cracking and wear this bobbin set is made in Taiwan and packaged in Canada offering dependable performance as part of your sewing machine accessories and supplies MORE BOBBINS LESS RELOADING: Includes 12 clear Class 15 plastic bobbins to minimize winding interruptions and support multi-color thread preparation for quilting, embroidery, repairs, or dressmaking projects. Top and bottom are completely flat UNIVERSAL COMPATIBILITY: Engineered 20.3 x 11.5 mm bobbins for Class 15 machines. Compatible bobbins for Brother sewing machine. Also compatible for Singer bobbins, including Singer 4452 & Singer 4423. Works with top brands such as Janome & Kenmore JAM-FREE SMOOTH STITCHING: Maintains balanced thread tension to minimize tangles, skipped stitches, and thread breakage ideal for beginners, hobbyists, and fashion students seeking consistent results on home sewing machines CLEAR BOBBINS FOR COLOR CONTROL: Transparent bobbins allow easy visibility of thread type and usage so users can manage supplies during multi-color sewing machine projects for garments, crafts, alterations, and quilting designs Class 15 plastic bobbins for sewing machine, ideal for drop-in bobbin systems using 2518P clear plastic bobbins. Fits Brother CP100X, XM2701, SE700, SA156, fits Singer 4452, 4411, 4423, 9960, fits Janome 2212, 3337, fits Kenmore top-loading machines. These clear bobbins for sewing allow easy thread monitoring, reduce jamming, and support smooth thread tension for consistent stitch quality. Best choice for quilting, dressmaking, embroidery, and general sewing. Designed for users looking for plastic bobbins that fits Brother sewing machines, Singer bobbins Class 15, bobbins for Janome sewing machine, Kenmore sewing bobbins, and SA156 equivalent bobbins. Made in Taiwan, packaged in Canada. Used by hobbyists, fashion students, and home sewists. Great sewing machine bobbins accessory pack for color-coded thread prep. Compatible with popular sewing machine models using Class 15 bobbin size with flat sides and clear plastic construction