This bundle includes two compatible sewing machine components - 1.5 BOBBINS model 8228 - 2.1 SHUTTLE BOBBIN CASE model 8327 Key benefits and features - Reliable thread supply Provides consistent bobbin thread winding and feeding to support smooth stitches and reduce interruptions during sewing projects. - Targeted compatibility Designed for machines that use 1.5 size bobbins and a 2.1 shuttle bobbin case. Includes exact model references to ensure correct pairing with compatible systems. - Easy installation and handling Standardized design promotes quick, straightforward replacement with minimal fiddling, helping you keep projects moving. - Performance focused Built to maintain proper alignment and function within the bobbin area to support stable tension and dependable stitch quality. - Practical value for shops and home use Having these components on hand minimizes downtime from worn parts and helps sustain consistent results across multiple projects. Key specifications and compatibility - 1.5 BOBBINS, model 8228 Size designation: 1.5. Used with machines that support 1.5 size bobbins. - 2.1 SHUTTLE BOBBIN CASE, model 8327 Size designation: 2.1. Used with shuttle bobbin cases that require a 2.1 designation. - Function Bobbins supply thread for stitching; shuttle bobbin case houses the bobbin within the shuttle mechanism as part of normal sewing machine operation. Use scenarios - Scenario 1: Busy alteration shop Replace worn or depleted bobbins and the shuttle bobbin case to maintain fast turnaround times and consistent stitch quality when handling multiple garments in a day. - Scenario 2: Quilting project preparation Stock spare 1.5 bobbins and a 2.1 shuttle bobbin case to ensure reliable thread supply and smooth machine performance across long quilting sessions. - Scenario 3: On-the-road repair kit Include in a portable sewing kit for repairs away from the workshop, enabling quick part swaps to keep projects on schedule.