This is the Driveshaft and Stuffing Tube for the Traxxas Blast Electric Boat. FEATURES: Aluminum construction Silver in color INCLUDES: One Drive Shaft One Stuffing Tube Two Oilite Bushings REQUIRES: Installation inside hull following instructions in manual SPECS: Length of Driveshaft: 151mm (5.9") Diameter of Driveshaft: 4mm (0.16") cnh 10/7/08 ir/jxs BOX DIMENSIONS: 3.25" W. X .25" H. X 6.00" L. BOX WEIGHT: .07 LBS.