Product Description: Three surrounding, more solid Can modify the score directly on paper Stainless steel rings Firm and does not fall off the page Thicken the page It won't collapse when it stands up 100 envelopes money saving challenge 100 envelopes money saving challenge 100 envelopes money saving challenge 100 envelopes money saving challenge small daily contact lens case Music folder: binders make it easy to insert paper into a fixed strip. The top, bottom, and sides of each sheet that tend to slip off are covered for a firmer look, and the plastic bag is non-reflective to prevent eye strain and can be edited directly on the score Sheet music folder: easily organize up to 60 sheet music, with 30 music files and scores on the front and back, up to 60 8.5 x 11-inch letter-sized sheet music, reduce the number of cluttered sheet music or files in your music studio, office, home or school Music binder: this sturdy sheet music binder is a spiral loop that unfolds 180 degrees and sits flat on the music stand for a comfortable viewing angle Sheet music organizer: the sheet music is made of durable PP material, which is strong, waterproof and tear resistant. It doesn't deform, making it easy to organize and protect important sheet music or other paper documents Sheet music binder: ABS shell with matte texture, durable, elegant, simple cover, beautiful and generous