Large spool cap accommodates standard sewing machine spools for extended use
Durable plastic construction resists wear and tear for long-lasting performance
Easy to install and remove for convenient spool changes
Universal fit for multiple brands and models broadens compatibility
Helps prevent thread breakage and ensures smooth spool feeding
Summarized by Shop
Spool caps prevent the leading thread from catching the head of the spool while the machine is running. In general it helps the thread properly unwind.