This is a replacement Pro-Line PRO-MT 4x4 Pivot Ball Hardware and Shock Piston Set.

Features:

• Includes Hardened Steel Pivot Balls & Aluminum Pivot Set Screws
• Pivot Ball Inserts and Pistons Made from High Quality Low Friction White Delrin
• Designed to devour hits from all Angles

Includes:

• (2) PRO-MT 4x4 Hardened Steel Pivot Balls
  
• (2) PRO-MT 4x4 Aluminum Pivot Set Screws
  
• (1) PRO-MT 4x4 Delrin Pistons & Pivot Inserts Plastic Tree

• Pro-Line PRO-MT 4x4