This product has been designed in order to help peolple with one hand zip up their jackers more easily.
You must grab the bottom part of the jacket with the 2-part peg while you grab your shoe's tongue with the flat one. Both pegs have to been linked with an elastic wire in orden to generate enough tension.
This can also be used with only the 2-part peg, stepping on the wire that will come out of the hole of that peg so the wire remains rigid. This wire is suggested not to be elastic.