Made in the USA
CNC Machined from alloy steel
Hardened for long life and maximum strength
Features larger 4.5mm pins and ball diameter
Beefy shaft diameter (Guaranteed not to bend our break)
Replaceable pins
Lifetime warranty
 
You will also need the Fastlane Machine SD Drive cup kit for these shafts to work. 
Available in standard length or Extended to fit FLM or Kraken Extended arms.