2-Blade weedless prop combines NASA?s hydrofoil design and Mercury's industry-leading technology. Delivers more power and up to 30% more battery efficiency and excels in current and shallow water. Constructed of engineered polymer. Standard on Tour Pro and Tour, or repower any MotorGuide trolling motor with a 3.5" hub. Includes prop pin, nut and washer. Size 10.25" Dia.