XOAR x Gemfan Vortex Electric Glass Fiber Nylon Propeller - 11 to 20 Inch

Durable Material: Made from high-quality glass fiber-reinforced nylon for enhanced strength and longevity. Lightweight & Efficient: Optimized for performance with a lightweight design that reduces engine strain. Easy Installation: Designed for quick and hassle-free setup. Weather-Resistant: Withstands harsh environmental conditions, including UV exposure. Pre-Balanced* : Each prop is balanced both horizontally and vertically for minimal vibration caused by the airplane propeller. Compatible with High RPMs – Suitable for high-performance motors without excessive flex or deformation. Diameter and Pitch is engraved into the Hub diameter. Each will Come with two Pieces 5-7" will come with 4 reducers- 3mm/4mm/5mm/6mm 8-10" will come with 6 reducers-3mm/3.17mm/4mm/5mm/6mm/8mm Diameter Pitch Average Net Weight* Shaft Size 11" 5.5, 7,   25-26.3g 6.35 mm 12" 6, 8  30.4g 6.35 mm 13"  6.5, 10, 13  35g 6.35 mm 14" 7, 10, 12, 14  36.9-40.6g 6.35 mm 15" 8, 10, 12  45.9-46.72