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Amazon.com : 2 Ring Binder Mechanism, Magnetic Ring Binder 1 Inch, D Shaped Ring, for Hanging A5 Paper (Size 5.5 x 8.5 Inch, Half Letter), Pack of 25 : Office Products
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2 Ring Binder Mechanism, Magnetic Ring Binder 1 Inch, D Shaped Ring, for Hanging A5 Paper (Size 5.5 x 8.5 Inch, Half Letter)
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Shuokecrafts 5pcs 2-Ring Binder Mechanism Spines for Top-Binding , 2 O Rings,20mm Base Width,133mm =5.24 inch Length,Top-Binding on The 8.5” Edge of a Letter Size Page, Pack of 5 (25mm)
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Amazon.com : Shuokecrafts 2Pcs Metal Standard Letter Size Notebook 3-Ring Binder Mechanism Replacement Kit,3 O Rings,1inch Capacity,Loose Leaf Binding Spines Combs for Organizers DIY Planners (Silver) : Office Products
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Shuokecrafts 2Pcs Gold Standard Letter Metal 3-Ring Binder Mechanism Replacement Kit,3 O Rings,1inch Capacity,Loose Leaf Binding Spines Combs for Personal Organizers Planners
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