Features:1. The rudder is made of anti-rust and anti-corrosion 6061 hard aluminum alloy, it has high strength and durability.2. The rudder plate of 75mm/3in is suitable for electric boat or methanol boat within 60cm/23.6in.3. The rudder plate of 95mm/3.7in is suitable for electric boat or methanol boat within 85cm/33.5in.4. It is made of all CNC machine process to guarantee the best fit.5. It is mainly used in electric boat, methanol boat steering and motor water cooling design.Specification: Condition: 100% Brand NewItem Type: RC AccessoryMaterial: 6061 Hard Aluminum AlloyOptional Color: Silver, BlueOptional Depth of Rudder Plate: Approx. 75mm/3in, 95mm/3.7inPackage List:1 * RC RudderNote:Please allow slight deviation of 1-3mm for manual measurement. Thanks for your understanding. 1The rudder is made of anti-rust and anti-corrosion 6061 hard aluminum alloy, it has high strength and durability. 2The rudder plate of 75mm/3in is suitable for electric boat or methanol boat within 60cm/23.6in. 3The rudder plate of 95mm/3.7in is suitable for electric boat or methanol boat within 85cm/33.5in. 4It is made of all CNC machine process to guarantee the best fit. 5It is mainly used in electric boat, methanol boat steering and motor water cooling design.