The Schmitt & Ongaro Marine 50044 Throttle Knob is a component designed for marine throttle control systems. Constructed from 316 cast stainless steel, this 1-7/8" knob is engineered for durability in demanding environments. It features red grooves, providing both visual identification and tactile feedback for operators. This design choice aids in quick and accurate throttle adjustments, which is critical for marine applications. Its adherence to ABYC specifications ensures it meets recognized industry standards for marine components.