This is a GemFan 10x4.5 Reverse Rotation Propeller. GemFan produces high quality propellers for Airplane and Multi-Rotor craft use. The GemFan propellers are available in both normal and reverse rotation as used for multi-rotor craft. These props are made from ABS plastic with a glass fiber fill for extra rigidity and durability.
Size: 10"x4.5" Reverse Rotation
Hole Size: 6mm Front/9.5mm Back with 3mm, 4mm, 5mm, 6mm & 8mm adapters included
Material: ABS with glass fiber fill