Compatible with Brother DK-1241 Die-Cut Large Shipping Label, 4″ x 6″ (102 mm…
And it is detachable make rolls easy to be install. Make sure the identification block in first label is clear. For the 1241 label (size: 4″ x 6″) is similar with 1247 label (size: 4.07″ x 6.4″) which make a mistake on size recoganize.