The item is machine grommets for needles. They are designed specifically for machine use. Easy to use and perform the same function as grommets. Manufactured to tight tolerances, they will ensure a fit between your needle loop and armature bar.

Features    

- Color: Mixed Color.
- Material: Silicone.
- Hole Diameter: 3mm.
- Axle Diameter: 5mm.
- Designed specifically for machine use.
- Easy to use.
- Performs the same function as grommets.
- Will ensure a fit between your needle loop and armature bar.