[HIGH CAPACITY] This spiral binding spool has a diameter of 16 mm (5/8 inches) and can hold up to 140 sheets of paper (A4, 70 g), making it easy to add or remove pages.
[ SECURE BINDING ] 48 loop design at 4:1 pitch ensures binding machine compatibility for professional and secure binding.
[LONG TERM PRODUCTIVITY] Each set comes with 100 spool binders, for all your binding projects, providing easy and efficient document binding.
[USER FRIENDLY DESIGN] The 360-degree page flip rotation allows for easy reading and flat position once opened, improving convenience.
[ VERSATILE USE] Ideal for engineering files, business projects, office documents and university presentations, these spools can be cut with scissors to suit individual needs.

Specifications:
Item Type: Spiral Binding
Material: Iron
Binding diameter: approx. 16 mm/5/8 inches.
Binding capacity: 140 sheets (A4, 70 g)
Buckle: 48
Steps: 4:1

Package list:
100 x

Binding spiral
Note: