REMITA A4-Strong Transparent Book Covers, 15 sheets, durable PP material. I purchased and stored these several years ago, so there is some discoloration on the packaging. However, the contents appear to be unaffected, although this cannot be definitively confirmed without opening the package. Therefore, although they are new, I am listing them as unused. ◆ Transparent book covers for A4-strong size books (e.g., sheet music, art books), 15 sheets 【Please Note】These can be used for books slightly larger than A4. Suitable for large-size sheet music, art books, photo albums, etc. They cannot be used for A4 size books or smaller. ※ Please check the compatible size before purchasing, as sheet music and art books come in various sizes. Examples include: For Adults Piano Lessons, Burgmüller 25 Etudes, Paderewski Edition Complete Chopin, Piano Collection Brave, and Now Starting!! Acoustic Guitar Introduction. ※ They do not fit sheet music treated as foreign books or special sizes with a height of 31cm or more, such as imported editions. Example: Henle Urtext Edition (height 31.6cm) ◆ Compatible size: Fits books approximately 305mm (height) x 225mm (width) x 5-20mm (thickness) ◆ Cover size: 570 x 308, anti-static tape ◆ OPP material, 40 microns / OPP material is a light, transparent film-like material. ◆ Made in Japan Thank you for viewing.