ACCESSORIES:Stainless Steel Button Head Screw 2.5*12 - 5pcs2.5*10 - 2pcs2.5*14 - 1pc2.5*6*2 Aluminium Collars - 1pc2.5MM T Lock Nut - 1pc1. Aluminum material is being used for this set of aluminum tie rods, they are adjustable for the length, using clockwise and anti-clockwise threads for easier installation, let the vehicle have a better steering performance and being supportive to the entire chassis to become more stable.2. High quality polyurethane ball ends with balls installed, ready to use, just simply plug and play.3. 2 pieces of steering tie rods ball ends midpoint distance is 40mm.4. 2 pieces of supporting tie rods ball ends midpoint distance is 42mm.5. 1 piece of servo tie rod ball ends midpoint distance is 40mm.6.We use a quality light weight high tensile strength aluminum 6061 T6 and is then anodized with scratch resistant colors