These bobbins are for most household sewing machines. The bobbin storage container is great for keeping your bobbins organized. Suitable for organizing your various color bobbins.

Specification
Material: Galvanized Metal
Size: 6 x 20 x 9 mm / 0.24 x 0.79 x 0.35inch(ID*W*H)
Shaft Inner Diameter: 7mm/0.28-inch
Package Contents: 32Pcs x bobbins, 1 x plastic case

Advantage
These Metal Bobbins are made of galvanized metal, no rust, smooth and sturdy. They are made with thicker side-walls for extra durability. The plastic tube is lighter than metal and can easily wrap the wire on them.

Instruction
Steps of installation:
1. Just replace the spent bobbin with a fresh one;
2. After replacing a new bobbin, keep your sewing machine running.

Note：
1. Universal bobbins are for most sewing machines.
2. Please read the measurements before ordering if you are concerned about the size.