Knob, Throttle Grooved

316 Cast Stainless Shaft - Standard Arms fit Morse Twin SR - CH5600 Controls Yacht Arm fits most Single Lever Side Mount Controls.

1 1/2" Throttle and Shift Knobs fit Morse MY-3, MV-2 - Twin and Single Controls with 3/8"-24 Threads

1 7/8" Throttle and Shift Control Knobs Fit Hynautic D-Dec/Sturdy Controls - Throttle Knobs are colored for Sight and Grooved for Feel

Meets ABYC Specification - US Patent #5,878,628