4mm aperture and 6mm output axle Aluminum Adapter.
Stock up on your RC hobby essentials with this 4mm propeller adapters, which are ideal for use with brushless motors and speed controllers.
Aluminium alloy material with silver color.
Motor Shaft Adapter for 4mm Dia shaft and 6mm dia hole propeller, excellent model plane parts.
Package including : 4PCS X 4mm Propeller Adapter.