Prat Polyester Sheet Protectors are archival-quality, super-clear polyester sleeves, measuring 21cm x 30cm, designed to fit Prat's range of spiral books.
Sold in a pack of 10, these mounting inserts are made from acid-free black paper, and the sleeves are sealed on three sides.
Prat Polyester Sheet Protectors are also available in A3 and A4 size.