Product description
Specifications:
Product Name: Loose Book Binding Ring.
Material: Plastic.
Color: Black.
Hole type:T Mushroom.
Outer Diameter:24mm/0.94Inch.
Package Include: 20PCS.

Features:
Can remove the paper at will without damaging the paper.
When the cover is retained, the new paper is replaced with old paper, which is economical and environmentally friendly.
You can quickly reorder inner pages.
The inner page can be turned 360 degrees, can be folded and written, occupying a smaller space on the table.