Double spirals

3) Also many loops size based on loop inside size with binding thickness,as 1/4",6.40mm with 4.60mm .

2) Advantages:
. Free precut service
. Good quality
. Colors optional.

1) This product is made of high quality carbon steel and is easy to press into the shape
of round. It is very convenient to bind. It is used for printing finished products
such as bookbinding, table calendar, loose-leaf notebook, map, diary, catalogue,
and receipt.

Used for binding products such as table calendar, loose-leaf notebook, map, diary, catalogue, etc