Sturdy & Long-lasting: Made of iron, the sturdy metal material guarantees the durability of these loose-leaf paper rings, allowing you to reuse many times. Simple Operation: The handy design of metal book rings makes its use effortless, you only need pull to open and squeeze to close. Multi-Functional: These metal steel binder rings are multifunctional. You can use paper rings to bind documents, photos, keys or small cards, such as word cards, index cards, memory cards, scrapbooks, notebooks, or other loose-leaf items. Package Included: 100 Pcs metal book rings are colorful and enough quantity to meet all needs in your daily life. Widely application: Our colorful metallic loose leaf rings, combining fashionable and modern style, operation is very simple, you only need to pull, squeeze to close, this design makes the close bite tighter. Suitable for office, school, home use. Material: iron colour: Random Color Note: Random color, don't accept the specified color. Package Contents: 100 x Colorful Loose Leaf Binder Ring Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.