The genuine Dymo 1978366 tape measures a full 3 metres in length and a substantially 12mm in width. The girth of the Dymo 1978366 tape allows characters to be clearly printed to it and the white on red surface further makes labelled items easily identifiable.The durable surface of this D1 tape makes the Dymo 1978366 an excellent choice and the results very hard wearing. As an original Dymo product, the 1978366 comes with a quality of print that is inseparable from the brand.