Description This reusable ring features a metal book binder ring construction with a unique three-hole loose-leaf binder rings design, allowing users to easily fasten, remove, or rearrange documents. Its sturdy iron openable rings offer wear-resistant buckle flexibility, making it perfect for everyday office metal book rings use. The metal rings for crafts also add a decorative book clip rings touch, suitable for organization at school, work, or home. Features - Color: Golden -Material:Iron - Size: 4.00X2.50X0.20cm/1.57X0.98X0.08in -Inner diameter: 20mm -Easy document organization: the reusable ring design allows quick adding or removing pages, making these metal book binder rings perfect for daily file updates and flexible organization -metal construction: crafted with iron loose leaf rings, these binder rings are built to last, resisting bending and maintaining their shape through frequent use -Universal 3 hole compatibility: the three hole openable binder rings ensure convenient use with standard looseleaf paper, ideal for school, office, or diy notebook projects -Secure three ring structure: the sturdy three ring binder ring keeps papers stable and prevents accidental page loss while allowing smooth page flipping for efficient reference -Multipurpose usage: whether for scrapbook binder rings, flash card rings, or practical book rings at home or in the office, this product adapts to all your binding and organizing needsPackage list: 20 x loose-leaf binding rings