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Small Black 3-Ring Vinyl Binder w Non-Standard 6 X 9-in Lined Paper (100 Sheets) 516-9 Paper - Walmart.com
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Amazon.com : Detachable 3-Ring Binder Insert (1” Capacity, for 6x9” Paper), Compatible with Our Binder Cover Systems. : Office Products
Amazon.com : Avery Mini Binder Filler Paper for 3 Ring Binders or 7 Ring Binders, College Ruled, 5.5" x 8.5", 100 Sheets (14230) White : Notebook Filler Paper : Office Products
Mr. Pen- Loose Leaf Binder Ring, 40 Pack, Binder Rings 1 Inch, Binder Rings, Book Rings, Metal Rings for Index Cards, Rings for Flash Cards, Index Card Rings, Paper Rings, Small Binder