Babe 48 Pieces For Thin Hair Tape-In Extensions Single-Sided Tape Tape-In Hair extensions are great for all types of hair, but they work especially well for thin-haired clients. The mini-weft format allows for even distribution across a section of hair. Each section of the client’s hair is sandwiched between two Tape-In Hair Extension wefts, which makes it seamless, natural-looking, and easy to install. Single-Sided Tape makes it possible to use only one Tape-In hair extension weft per section instead of two. In this method, one weft of Tape-In hair is placed on top of each section of hair, and a piece of Single Sided Tape is placed on the other side, sandwiching the hair and sealing in the adhesive. The Single-Sided Tape piece essential takes the place of another Tape-In Extension.