This is an optional Vanquish Products Wraith Aluminum Servo Mount Set. These billet aluminum servo mounts are used to mount the servo to the servo plate. The mounts are precision machined billet aluminum and hard anodized for durability. Package includes two mounts and six 3x8mm button head screws. Combine these with the Vanquish Products Wraith Aluminum Servo Clamps (VPS06932/VPS06933) for a rock solid servo mount.