Simply combine the fabric type of your choice with Fusible Web (item sold separately) and iron. You can create instant bias tapes in minutes. Yellow in color 12mm 1/2 of a inch size. For 1/4" & 3/8" use 5mm Fusible Web (Art No. 4031). 1/2", 3/4" & 1" use 10mm Fusible Web (Art No. 4032).