These are optional Team Integy Billet Machined Suspension Arms for use in the Traxxas 1/10 Slash 4X4. FEATURES: Billet machined aluminum construction Anodized blue in color INCLUDES: Two billet machined suspension arms REQUIRES: Installation onto vehicle SPECS: Length: 99mm (3.9") Width: 45mm (1.77") at widest point Thichness: 7mm (0.28") COMMENTS: Also available in Silver (INTC3931)