The main function of the gear head of the weeding machine is to transmit power and adjust the speed. As a transmission device, the gear head can transmit the power of the engine to the cutting blade device, while adjusting the speed to adapt to different mowing needs and lawn conditions. By combining gears of different sizes and tooth numbers, the gear head can change the torque at the output end, ensuring that the lawnmower can work efficiently and stably in various environments. Durable material Light weight and durability This is High quality of Aluminium Alloy material Type:Gear Head Condition:100% Fitment:For Stihl FS120 FS 120 FS131 FS235 FS240 FS250 FS260R FSA130 FSA 135 FS111 Colour:Silver Material:Aluminum Alloy Package Contents: 1 x Arrivals Gear Head Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.