Hot Racing Dual Pickup Rudder Blade for the Traxxas DCB M41 Boat, TRAB7046. Features: CNC machined billet aluminum construction, blue anodized finish for corrosion resistance. Dual water pickup for additional cooling. Replaces stock Traxxas rudder blade #5779, TRAB5779 Includes: Dual Pickup Rudder Blade Requires: Adding a second water line and a water outlet. Installing and attaching linkage, water line, and dual water outlet. Specs: Width at Top of Rudder Blade: 1.2" (31mm) Width at Bottom of Rudder Blade: 1.04" (26.5mm)Total Rudder Length: 5" (127mm)