Photo 1 of Carstens 4-Inch Heavy Duty 3-Ring Binder - Side Opening, Plum, Durable Plastic, Precision No-Gap Rings, Waterproof Cover, No Pockets, Holds 600 Letter Sheets, BPA-Free Made in USA (1841-3R)

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Photo 1 of Carstens 4-Inch Heavy Duty 3-Ring Binder - Side Opening, Plum, Durable Plastic, Precision No-Gap Rings, Waterproof Cover, No Pockets, Holds 600 Letter Sheets, BPA-Free Made in USA (1841-3R)Photo 2 of Carstens 4-Inch Heavy Duty 3-Ring Binder - Side Opening, Plum, Durable Plastic, Precision No-Gap Rings, Waterproof Cover, No Pockets, Holds 600 Letter Sheets, BPA-Free Made in USA (1841-3R)