This folder has 30 pockets/60 pages for intensive use. Adopting stainless steel ring and transparent interlayer design on the inner page, suitable for A4 format, both front and back pages can be used. This organized folder has received praise from various musicians, including orchestras and brass bands. The sturdy spiral binding allows you to lay the score flat on a flat surface at a 180 degree angle to the cover. Spiral binding allows folders to be opened at 180 degrees. The folders on the music rack will not automatically close. And it can easily and accurately turn pages. Widely used: Changing the spectrum folder is very suitable for different instrument performers and musicians. This is the best choice for music enthusiasts.Dimensions: 31.5 x 23.5 x 1.5 cmQuantity: 1Features:-This folder has 30 pockets/60 pages for intensive use. Adopting stainless steel ring and transparent interlayer design on the inner page, suitable for A4 format, both front and back pages can be used.-Widely used: Changing the spectrum folder is very suitable for different instrument performers and musicians. This is the best choice for music enthusiasts.-This organized folder has received praise from various musicians, including orchestras and brass bands.-Even if you flip the folder, your score will not fall out.-The sturdy spiral binding allows you to lay the score flat on a flat surface at a 180 degree angle to the cover. Spiral binding allows folders to be opened at 180 degrees.-The folders on the music rack will not automatically close. And it can easily and accurately rotate the page.