It is a type of adhesive(medicated) interlining that allows your fabrics to stand upright and hard.

It is the most preferred type of interlining for shirt collars and collars to stand upright and hard.

The interlining is adhesive on one side.

You can also use it to make your embroidery and stalling fabrics that you want to be stiff look stiff.

You can also use it in bags.

It is a type of dock interlining that provides adhesion by applying heat with a household iron.