Features • 22mm Inner Diameter: Designed with a spacious 22mm inner diameter and 30 holes, these binding spines accommodate multiple sheets, ensuring your documents stay organized and secure • Durable 10-Piece Set: This set includes 10 binding spines, providing ample supply for all your binding needs, perfect for both personal and professional projects • High-Quality PP Material: Crafted from premium PP plastic, these binding rings are wear-resistant and anti-aging, ensuring long-lasting use without compromising on strength • Smooth Page Turning: Featuring a glossy finish and strong adhesion, these binding strips allow for easy page turning and can be reused multiple times without breaking • Versatile Binding Tool: Easily punch suitable holes and bind documents manually, making this a user-friendly solution for students and office staff alike Features: 1、22mm 30 Holes: This is 30 hole loose leaf paper binding strip with an inner diameter of 22mm, which can hold multiple sheets at one time. 2、10 Pieces in Set: The set contains 10 pieces this binding spines, allowing you to easily store paper and use for a long time. 3、 PP Material: The binding spine is made of excellent PP plastic, there is no harml, has good wear and resistant, anti aging, sturdy and . 4、Good Performance: The binding strip is glossy, and has strong adhesion, not easy to break, can turn page smoothly, and can be used repeatedly. 5、Wide Usage: Binding strip can be manually bound by punching suitable holes, which can be easily operated by any office staff or student. Specification: Item Type: Loose Leaf Binding Spine Material: Polypropylene Inner Diameter: Approx. 22mm/0.9in Type: Stationery Accories Binding Consumables Package List: 10 x Loose Leaf Binding Spine Package List 10 x Loose Leaf Binding Spine