The basics Blue Liner Tape Strips are dual-purpose, double-sided lace front wig support tapes. The benefits Super stick side fusion to the scalp for longer bonding. Blue-liner side fusion to the base for easy removal. The uses These 3-inch tape strips can be used on lace and poly perimeters on lace or monofilament bases; simply flip the strips over for the hold you need. The bottom line They work for daily or extended wear and offer a hold of two to four weeks.