G.S.P (Gel Spun Polyethylene) is by far the strongest thread on the planet after Veevus thread. In difference to other brands the Veevus G.S.P. thread has been designed with a slight twist preventing it from opening up, and thereby making tying with it a breeze. It lays completely flat and is the smoothest thread to spin hair with. It is currently available in 2 colors in the following sizes, 200Denier, 150Denier, 100Denier and 50Denier. Also Veevus are the first to offer a 30Denier GSP(This size is available in white only). Each spool contains 75m which is 67% more thread than offered by anyone else in our industry.