★60-page, 15-sheet storage, 4-page spread music file★ Easy to use with direct writing! I tried putting sheet music in it once, but I started using an iPad soon after, so I haven't used it since. 【4-page spread file】The file on one side has a structure where two pages are connected. By turning two pages of sheet music with many pages, such as piano or electone, at once, it becomes a 4-page spread sheet music. 【Direct writing OK without taking out the sheet music】You can insert sheet music or documents into the upper and lower bands and write directly on them. It has a generous 15-sheet, 60-page storage size. 【No reflection of lighting】When sheet music is inserted into the upper and lower bands, the stage lighting will not reflect. Unlike the clear files of the past, the lighting will not reflect and make the sheet music difficult to see. 【Sheet music is easy to see and opens 180 degrees】The file is a ring type, so the pages will not close on their own during performance, allowing you to concentrate on the performance without stress. 【Clear file pocket function】When writing is not necessary or for storing sheet music, store it in the pocket. Storing it in the pocket protects important sheet music from falling out during transport. 【4 covers】By having 4 covers, the sheet music on both sides will not fall back when you place it on a music stand and look at the sheet music. 【Size】Folded: Approximately Height 31 x Width 25 x Thickness 2 cm Opened: 31 x 95.5 cm Weight: Approximately 700 g Sheet music size A4 US