This product family, more than others, has contributed to the evolution of the "closure system" towards the concept of "fastening system". These are products designed for sophisticated and innovative fields of application that require mechanical fastening. They are plastic tapes made of extruded polypropylene or polyamide equipped with the following fastening elements: mushroom, hook, or loop. Extruded hook and loop tapes are particularly suitable for technical applications where the need for strong holding power outweighs the need for repeated opening and closing over time, which is typical of traditional hook and loop tapes.