Amazon.com : Chris-Wang 10Pcs Metal 3-Ring Binding Spines Combs, Loose Leaf Binder DIY Photo Album Rings Book Calendar Round Circle, 0.75-Inch Spine Diameter, Black : Office Products
One-Touch Classic 3-Ring Binders with Slipcases, 3" Spine, Pack of 7 - Bindertek
Amazon.com: Carstens Patient I.D. Adhesive Medical Chart Labels for 1.5” – 4” Ring Binder Spines – Pre-Printed Sticker Labels (Room No. / Patient/Doctor), 5 3/8” x 1 3/8”, White, Roll of 200 : Everything Else
Amazon.com : 1/2" Poly 3 Ring Presentation View Binder with Pocket Allows for Quick Loading of Spine Inserts and Prevents Gapping and Mis Alignment of Rings (Pack of 6) - by Emraw : Office Products
Nickel plating 3 metal ring binder spine for folder, View 3 ring binder spine, HAOTIAN Product Details from Shanghai Haotian Stationery Co., Ltd. on Alibaba.com