Description: - NEW specially designed locking cone securely centers and locks props on to the balancing shaft for utmost accuracy. - Each cone is carefully inspected on a calibrator to make sure it is running true. - The balancing shaft is manufactured out of hardened material and then is centerless ground giving precision balance every time. - The prop balancer's aluminum wheels turn virtually friction free for precision accuracy. - The Tru-Spin Prop Balancer will balance model airplane props of all sizes and weights, boat props, spinners, car wheels, helicopter rotor heads, jet fans, fly wheels, etc. - Each balancer comes complete with easy to follow assembly and prop balancing instructions.Specification: - Color: Black - For vehicle type: RC Helicopter Multirotor Airplanes Cars Boats - Part: Prop Balancer - For vehicle brand: any brand - Material: Alloy - Size: 137 x 87 x 156mmPackage Includes:1 x Tru-spin Prop BalancerNote:Please allow slightly 0-1cm difference due to manual measurement.Colors can appear different depending on light and how the listing is viewed.Thanks for your understanding and attention. Wish you a pleasant shopping experience!