The length of the piezo igniter is 35*6*6 ,with iron hat ,not copper. The size of the twine is 19cm shade of the twine of every batch of igniters could even be different, so the default is random delivery, and the color specified by the client isn't authorised you place an order, you accept this provision by way of means of default to refer to visitor service, if you wish different types and quantities, please tell us, we can present you with a more right quotation* This parameter sheet is simply for you as a reference. Product could be made as your request1 spark ignitor is plastic2 spark ignitor cooperate with eletrode three spark ignitor for gas oven burner ,gas stove4 spark ignitor carries high-voltage ignition through eletrode5 spark ignitor has no battery just press, one press one spark. We also promote various types of piezoelectric igniters, and help customization, you'd ship me your drawings or pictures.