The Brother RD-S05E1 pre-punched paper roll contains labels with a fixed size of 51mm x 26mm. These RD labels are suitable for various purposes, including creating barcode labels. Brother RD label rolls are made from paper sourced from sustainably managed forests, making them an environmentally responsible choice. This paper does not contain bisphenol-A, making RD labels also suitable for use on food and safe for children.