Plastic shell, starting pulley, starting spring and pull rope with handle are durable and can be used for a long time. pull , very suitable for replacing wires or damaged springs. It's cheaper than sending it to be repaired or buying a new saw. Easy to install, it is an excellent substitute for MS270 MS280, and the installation is fast and simple. specifications Name: assembly Suitable for MS270, MS280, MS270C, MS280C Chainsaw chainsaws Material: plastic colour: As Shown Package Contents: 2 x assembly 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.