The Ultimate White Bobbin Stock-Up
For a production longarm studio, running out of pre-wound white bobbins is an entirely avoidable interruption -- and the White Magna-Glide Classic Bobbins Case of 100 makes that interruption essentially impossible. 100 factory-wound bobbins at 60-weight white thread provides months of production capacity without a single winding session, consistent factory-applied tension on every bobbin, and the economics of bulk purchasing that individual jar or pack formats cannot match.
Classic Line vs. Delights Line
Both are Magna-Glide pre-wound bobbins from Fil-Tec. The Classic line uses a slightly different thread construction from the Delights -- the Classic is a smooth 60-weight thread that many longarm quilters find runs particularly cleanly in the bobbin position with minimal tension variation. The Delights line uses top Glide thread colors for color-matching. For general white bobbin use where color matching is not the priority, the Classic white is the standard production choice. The 100-count case format is exclusive to the Classic line.
Top 10 Benefits of the 100-Count Case
- Months of Uninterrupted Production -- A full case eliminates bobbin supply as a studio bottleneck for an extended period.
- Best Per-Bobbin Economics -- 100-count case pricing delivers the lowest per-bobbin cost available.
- Zero Winding Sessions -- Every bobbin in the case is factory-wound and ready to load directly.
- Consistent Factory Tension -- 100 bobbins at identical factory-applied tension, no variation between bobbins.
- Pre-Wound Stock for Multiple Machines -- Studios with two or more machines maintain a shared pool of ready bobbins for all machines simultaneously.
- Case-Level Quality Control -- Consistent tension across all 100 bobbins in the case from a single production batch.
- Retreat and Event Supply -- A subset of case bobbins supplies a full retreat or teaching event without depleting the studio supply.
- Reduces Bobbin Winding Labor Cost -- At production volume, the time saved winding bobbins has real labor cost value. Pre-wound bobbins eliminate that cost entirely.
- Reusable Bobbins After Thread Use -- Empty M or L class metal bobbins from the case can be rewound for other thread colors after white thread is consumed.
- Studio Inventory Management -- A case of 100 is easy to track and reorder before supply runs out -- much easier than managing multiple small packages.
M Style vs. L Style
Available in both M Style (Gammill and other M-class machines) and L Style (L-class machines). Order the style that matches your machine. Both sizes are available in the 100-count case format.
Frequently Asked Questions
What thread weight is the Classic 60-weight?
60-weight is a fine thread -- thinner than the standard 40-weight top thread. It is designed for the bobbin position where fine, consistent thread at minimal bulk produces the cleanest stitch formation and the most invisible bobbin-side stitching on light-colored backings.
How long does a 100-count case last at production volume?
A fully wound M-size bobbin contains approximately 130 to 150 yards of 60-weight thread. At typical longarm consumption of 5 to 8 bobbin changes per queen quilt (depending on quilting density), 100 bobbins supports 12 to 20 queen quilts before depletion.
Can I use the Classic bobbins in the bobbin position with any top thread?
Yes -- 60-weight Classic white bobbins are compatible with any top thread for standard longarm work. The white color works invisibly on light backings and as a neutral on medium backings.
Shop White Magna-Glide Classic Bobbins Case of 100
100 factory-wound white bobbins. Load and quilt, no winding required, for months.




