Made of CNC aluminum alloy material, durable and high strength. Reduction gear design with 110CC four-stroke motorcycle starting motor and 6:1 reduction ratio, reducing circuit loss and providing high torque. Features a wear-resistant rubber head with a non-slip conical design for better grip on helicopter tail shafts or fixed-wing spinner covers, minimizing slippage. Equipped with a sensitive touch switch for easy operation on RC fixed-wing aircraft and helicopters. Includes a 4.0mm thick glass fiber support plate for enhanced durability. Compatible with Mayatech TOC80 electric RC models. Specifications: Starter Dimensions: Approx. 240x82x144mm / 9.45x3.23x5.67 inches Starter Outer Diameter: Approx. 56mm / 2.20 inches Inner Diameter: Approx. 51mm / 2.01 inches Height: Approx. 43mm / 1.69 inches Suitable for 45-90 grade methanol-powered fixed-wing models with spinner diameter above 2.25 inches Suitable for 10cc-80cc gasoline-powered fixed-wing models with spinner diameter above 2.25 inches Package Includes: 1 x Engine Starter Note: Allow 3 seconds per power cycle. Maximum of 5 consecutive uses. Allow cooling time before reuse.