This woven seamtape is a sew in tape made from polyester. It is used for reinforcing seams to prevent stretching.
Use this tape to sew along the seam of when stitching the seam (two layers of fabric) with this tape on top. Mostly used in baby clothing and shoulderseams of T-shirts. It is so thin that is does not show on the outside of the garment and prevents for example the sleeve from stretching the shoulderseam.

Not suitable for armholes because it is a straight tape. Use Vilene formtape for armholes.

Also used for flossing, some dentists recommend it when the space between your teeth is too wide for regular floss