Useful Double 4 Packs Sewing Spool Cap for Singer Sewing Machine 4000 6000

Description:

The spool pin fits1.69inch pin, its outside diameter is approx. 1 3/4 inches. Allows second spool of thread for double needle sewing.
Singer sewing machine spool pin fits more than 4000 5000 6000 9000 series.
A spool is the piece that attaches to the spool pin, that holds the thread in place and helps the thread properly unwind and not jump around while you're sewing.
The sewing spool is part that attaches to the spool pin which can hold thread in place and help the thread properly unwind and not jump around while you're sewing.
The double spool lead-off are made of high quality material, not easy to break or deform, which allows you to use for long time as replacements.

Specification:

Accessory name: pulley
Application: sewing machine
Applicable place: home
Accessories use: sewing equipment accessories
Diameter: 1.69inch/4.3cm
material: plastic

Package Includes:

4x spool pin