Keepfiling 9 x 12 3-Ring Binder for Music Sheets, 1.5 inch D-rings, 1 Binder 3 ring binder for 9" x 12" sheets 1-1/2" D-rings, can hold up to 270 pages OR 95 pages of sheet protectors Excellent for organizing music sheets Spine label pocket for labeling Made with archival safe polypropylene 3-ring 1.5&#034; D-rings Durable Convenience ~270 pages of paper, or ~95 pages of sheet protectors (depending on thickness) Inside pocket behind binder cover can hold an extra 1 or 2 pages of paper 3-ring binder Easy to open and close Black powder coated; reduces risk of nickel allergy D-rings to keep pages unformed and aligned Hard durable cover Yet, very slim - only a bit thicker than a penny Spine label pocket Finger hole for convenience<br>