It contains natural proteins that act like glue and it shrinks as it dries, so it doesn't need to be knotted. Sinew has been used for sewing thread to make clothing and accessories. It is also made into cord to attach blades to handles and arrowheads arrow shafts.

Is artificial sinew as good as real sinew?

Artificial Sinew is an excellent substitute for genuine sinew; extremely strong, authentic in color and splits just like real sinew! Perfect for moccasin sole sewing, stringing chokers and necklaces, wrapping feathers, and for use in a multitude of other projects that require strength and durability.

How strong is artificial sinew?

Artificial Sinew Characteristics

It comes in many colors, and can be cut to any length. The sinew is flat and ribbon-like - not round. It is about 1/16th inch wide and has an average 50 pound tensile strength.