Brother BTAG631 label 12 mm x 4 m Black on Yellow

Compatible label tape for P-Touch models

The Brother BTAG631 is a genuine label tape cassette designed for the PT-N10, PT-N20 and PT-N25BT label makers. It prints black text on a yellow plastic surface for high-contrast identification. The cassette holds a 12 mm wide by 4 m long roll and uses a removable adhesive that leaves no residue. Each pack contains one cassette.

Suitable for temporary labelling on smooth surfaces

This tape works well for cable tags, folder tabs and short-term asset labels where clean removal is required. The water-resistant finish protects the print from splashes and humidity. Buyers who need permanent bonding or labels that withstand heavy abrasion should look at a different adhesive formulation. Machines outside the three listed P-Touch models cannot use this cassette.

12 mm width determines printer fit

The 12 mm roll width is the single specification that decides compatibility; the PT-N10, PT-N20 and PT-N25BT accept this size. A narrower or wider cassette will not load in these devices. The 4 m length gives approximately 13.1 ft of labels per cassette.