• Clear-Glide is a high-tenacity polyester filament ready-wound bobbin.
• Clear-Glide is wound on a plastic sided bobbin shell.
• Designed for today's home sewing machines, and is the "clear-choice" for drop-in bobbin cases.
• Offers more stitches (or yds/bobbin) than competitive or machine wound bobbins.
• Works well in conjunction with thread sensors.
• Is ideal for embroidery, general sewing, and productivity minded quilters.
• Each box contains 80 loose bobbins.

Size 15 Class is slightly taller than size L but they have the same diameter. If you are not sure which bobbin your machine takes please call or email us.