The signature folders awarded the Blue Angel, featuring 5 compartments and a linen cover, are ideal for sorting and presenting daily mail and approval documents. The extra-strong pages made of gray cardboard with practical flip tabs are particularly tear-resistant and protect the documents from slipping out due to their rough surface. The three viewing holes make the folders especially clear and help to quickly review and process documents. Thanks to their high-quality linen cover and flexible spine, the signature folder is a very durable organizational tool, especially for frequent use with multi-page documents. The window in the cover can be labeled individually.