Material and Color: iron alloy, nickel plating (to prevent rusting and color fading)

Book rings securely hold pages that pitted by hole punch together without covers or binders. Paper rings are durable, sturdy, reusable and easy to use.

Open operation: stagger the hooks of loose leaf rings (front and back direction), pull open 2 parts of the binder rings (left and right direction).

Clasp operation: squeeze and align 2 parts, overlap the hooks.

When the binder rings are opened, you may find misalignment between 2 parts of the rings, because they have no spring or other elastic devices. This is designed to make clasp firm.

The flash cards rings are general-purpose that loose leaf rings could be used as classroom supplies, office supplies, teacher supplies and home supplies, use index card rings to fasten and organize: loose leaf paper, pages with sheet protectors or binder dividers, curtain, keys, any parts that need to be strung, etc.

Notes:

You may carefully use more strength to open or close metal rings!

Some book rings maybe hard to open at the first time because of the tight hinge. And it will be easy to open after the first time.

Please keep away from wet and acid condition.

Small parts, they should be used with care in children under 3 years old!

Dimensions:

Outer diameter: 2 inches (- 0.04 inches error)

Inner diameter: 1.75 inches (+/- 0.04 inches error)

Package Contents:

30* binder rings 2 inch