This is a Slipper Clutch Shaft for the Traxxas Rustler XL and Stampede XL. FEATURES: Steel construction _ Roll pin pre-installed INCLUDES: One slipper clutch set SPECS: Length: 1.98" (50mm) Diameter: .21" ( 5mm) COMMENTS: This part will fit both the standard and XL version of the Rustler or Stampede. ajw 10-1-06 ir/jxs BOX DIMENSIONS: 3.13" W. X .25" H. X 4.25" L. BOX WEIGHT: .02 LBS.