This kit is identical to the standard 2:1 jib sheet kit in that it includes the 2:1 bridle with the Ronstan Series 30 BB OrbitBlock blocks and the small piece of line to allow you to dead end the jib sheet if you do not have the Harken Carbo block on the jib car with the hollow center (linked below).  The difference is the jib sheets themselves as this kit includes two 21′ jib sheets cut from the Alpha Ropes SSR 1/4″ single braid dyneema.  This line is popular with racers as it is light weight but very strong making it a good all around jib sheet with no need to change sheets for light vs heavy air.  The single braid construction keeps it from easily knotting as well. Please note: the color of the jib sheet may vary.