... length:8m 1. consist of six layers of materials, resulting in thin, extremely strong, labels. Characters formed with thermal transfer ink ... layers of PET(polyethylene)film, the characters are virtually indestructible.2. The label is self-adhesive, crack and peel, can ... , 18mm, 24mm, 36mm, 50mm length 8m label ribbon TZ-631 for BROTHER label printer 9mm label ribbons for brother printer ribbon printer