1. Transmitting power: Transmitting the power of the engine to the saw chain to drive its rotation. 2. Drive saw chain: Rotate the saw chain at high speed to cut wood. 3. Stable saw chain: Maintain the stability of the saw chain during the cutting process to avoid derailment or jumping.<br><br>Sprocket is an indispensable component in chainsaws, which has a significant impact on the performance and work efficiency of chainsaws. So using a good sprocket is very important, This is of Metal materialDurable material,Light weight and durabilityand this product is very compatible with for Stihl 024 026 MS260 MS270 MS280 Part Number:11210071037 Fitment:For Stihl 024 026 MS260 MS270 MS280 Colour:As Shown Material:Metal<br><br>Package Contents: 1 x Rim Sprocket Kit<br><br>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.