Feature: [Wide Application] Our gearbox gear head assembly is applicable to agriculture, forestry and other fields.[Durable Material] High quality manganese steel plastic, good durability, low vibration, anti rust and anti .[Exquisite Workmanship] Using high quality gears, the workmanship is very fine, stable performance.[Great Compatibility] This multifunction pole saw chainsaw gearbox gear head fits for various of machines.[Easy To Install] Check whether the product aperture specification matches your own machine aperture, remove the old one and install the new one. How to Use: 1. Check whether the diameter of the product aperture matches the aperture of your own machine.2. Remove the saw head assembly of the old machine and install accessories of applicable specifications. Specification: Item Type: Chainsaw Gearbox Gear HeadMaterial: Manganese Steel PlasticColor: As shown in the pictureProduct Size: Approx. 14x10cm / 5.5x3.9inWeight: Approx. 597g / 21.1ozApplication: Chain Saw Package List: 1 x Chainsaw Gearbox Gear Head Note: 1. Please allow 1?2in error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.3. Saw head assembly accessories, saw not included.