These binder rings mechanisms provide extra strong hold without slipping or releasing of your documents invoices. Made with fine craftsmanship, and sturdy for a long time. The pull rod design ensures effortless access to documents, making it a convenient choice for busy individuals. Features -Color:Blue -Material:ABS -Size:31.00X1.00X1.00cm/12.18X0.39X0.39in -Plastic slide binders are not easy to break, and reliable, which can be applied for a long time. -The clamp design ensures that documents are securely held in place, making it easy to organize and categorize them. -Enough quantity binder mechanisms, which are sufficient to meet your daily work, school, office use and replacement. -They can make your book firmly, sturdy and not easy to fall off. -They can be simply expanded and closed easily, easily add or remove pages, convenient and flexible to use. Package list: Binder Bars