This set of two springs best use with Associated 1.32 stroke shocks. This gold spring set has more strength than stock the Associated blue springs. Stock Blue Spring 2.0lb/in. (Wire Size 1.30mm) Shiny Silver Spring 5.00lb/in (Wire Size 1.40mm) Shiny Gold Spring 5.5lb/in. (Wire Size 1.45mm) Flour Neon Red Spring 6.00/in (2.0mm) Package of eight springs(13 x 16 x 72mm)(12.5 Turn)