Class L clear-plastic bobbins ideal for winding your own bobbins.

Singer Class 15 Bobbins for Sewing Machines, Transparent Plastic Bobbins, 50 Count

How to Wind a Bobbin + additional information you should know.

Class 15 - Bobbins - Plastic - Clear - 5 pack - Big Dog Sewing

SHUTTLE HOOK & SMALL BOBBINS FIT FOR SINGER 29K CLASS,29-1,29K71,29K73,29K171

Prewound Embroidery Bobbins- 144 Count Per Box - Plastic Sided White - —

Understanding Bobbins: What Every Sewist Should Know - Sewing Parts Online - Everything Sewing, Delivered Quickly To Your Door

Fil-Tec Prewound Bobbins

Sewing Basics: All About Bobbins - Underground Crafter

Top Bobbin Thread Holders and Organizers (2023)

Class 66 Bobbins - 10/Pack - Clear - WAWAK Sewing Supplies

Singer Class 15 Bobbins for Sewing Machines, Transparent Plastic Bobbins, 50 Count

Style A Plastic Prewound Embroidery Bobbins 25 PCs — Richword

Class 15 - Clear Plastic Empty Bobbin Spools 10 pk.

Genuine Brother accessory. High quality clear plastic bobbins. 7/16 inch deep. Security notch for consistent bobbin thread winding. Clear bobbins

Brother SA156 Class 15 Plastic 7/16H Bobbins - 10 Pack

Small Bobbin Sewing Thread Kit in Various Color for DIY and Home Decoration - China Sewing Thread Set and Sewing Thread price