1High Quality: This ignition coil module is made of high quality materials, durable, wearresistant, and has a long service life. 2Professional Manufacturing: Exquisite craftsmanship and high precision help to provide the best performance for chain saw. 3Perfect Match: Perfect accessory for garden chain saws, effectively prolonging the service life of chain saw and stable performance. 4Application: Suitable for JONSERED chain saw 450 455 525 535 490 590; Replacement Number: 544018401. 5Note: Please make sure to order the model, specification and sequence of the cutting saw, and install it to the appropriate model.Item Type: Ignition Coil ModuleMaterial: Steel, SiliconeGross Weight: Approx. 175g 6.17ozSuitable for JONSERED Chain Saw 450 455 525 535 490 590Replacement Number: 5440184011 x Ignition Coil1 x Wire1 x Spark Plug