ChoreoKeeper Black Specialty Split-back Easel Binder for Display of Up to Six Pages (includes 4 Trifold Sheet Protectors) Swing out arms and trifold sheet protectors (4 are included) allow for display of up to six pages at once. 1-1/2" diameter rings hold the trifold sheet protectors with ample space for additional material (~50 pages total). Top-loading, reduced-glare, archival safe trifold sheet protectors (each trifold has three 8-1/2" x 11" pockets) allow pages to be easily changed out or reorganized. (Published sheet music may be sized larger and will NOT fit without modification.) Ideal for freestanding use. Although this will work on a music rack or stand, the ring mechanism may not lie completely flat due to Velcro underneath. The Solid-back Binder (available separately) is suggested if a music rack or sturdy stand (like a Manhasset) will always be used. When fully loaded, binder weight (~3 pounds) may be more than a folding stand can support; the top part of the stand might sink down