What's in the box 8 Pack Greencycle Compatible for Brother P Touch M Tape M521 MK521 M-K521 MK-521 Black on Blue Non-laminated standard adhesive tapes Replace for P-Touch Label Makers. Color: Black Text on transparent Background; Width: 9mm 3/8 inch (0.35'), Length: 26.2 feet (8 meter) each Durable labels Labels are fade/water/grease/grime/abrasion/temperature resistant, anti-corrosion, anti-UV. The print can stand up to harsh weather conditions and remains in place persistently without peeling or cracking. The compatible Brother P-touch MK label tape is ideal to print Blue, good-looking and durable labels. These tapes are easy to install and use. The label has a unique split back, making it easy to peel and apply. No sticky residue when the labels are removed Identify items and quickly organize your home or work space These labels are great for shelving, kitchen use, cabinets, file folders, USB sticks, food containers, storage boxes, personal possessions, children's school equipment w