Because it's transparent, the title is easy to see, and you can store your books neatly! You can adjust it to fit the thickness of your book! [For Size 4x6 Books] ■ [Compatible Size]: Suitable for books approximately 195mm tall x 135mm wide x 30mm thick [Product Size]: Approximately 200mm tall x 382mm wide (Please note that there may be slight variations) ■ Contents: 8 sheets ■ Material: Polypropylene Although this is a new, unused item, if, due to my mistake, I send you the wrong product or a product with scratches or stains that make it seem not new, I will accept returns and cancellations. It will be shipped via mail service. It will be delivered to your mailbox within 2-7 days of the shipping date.