XIANQI 28mm Inner Diameter Multi-color Binder Rings Plastic Book Rings DescriptionOur plastic loose leaf ring is 28 mm in inner diameter. It is recommended that the binding thickness should not exceed 28 mm. 6 different bright colors are available, include blue, red, green, yellow, orange and purple, different colors not only can satisfy your multiple needs, also can help you classify documents according to different colors Tight lock-in design: Multi-color paper leaf binder rings, tight lock design makes your books organized, not scattered after collapse, easy to operate. Occasions: Suitable for binders, study or note cards, classroom, office, home; Fastening any size document stack and keys and swatches. Package includes 100pcs binder leaf rings, contains 6 different colors. Color: random color Size: 28mm Delivery Quantity: 100 Pieces