You have two choices of materials for your strings:   Ultra Cam and XCEL   Ultra Cam has Outstanding strength and durability with the lowest creep factor available. Its made from 56% Vectran and 44% Dyneema and its diameter is.014 and is used by more pros than any other material.   Breaking Strength 119lbs.   XCEL has unmatched stability and has amazing speed in a combination material. Offering an extremely soft and quiet shot. Its made from 1/3 Vectran and 2/3 SK75Dyneema and its diameter is .014.    Breaking Strength 102 lbs.   Serving choices are: Lime Green, Purple, Gray,  Black, White, Red, Blue, Hunter Green, Dark Brown, Light Brown, Teal, Yellow and Orange.  Please add your serving color choice to the box in each section for string and serving lengths. Please Scroll down for all your String and Buss Cable choices