This listing is for one pair of JBL vintage crossovers for JBL model 4310. It looks like there were several versions of the 4310 crossovers. These are the older models and the speakers they came out of were originally purchased in 1971. They really need to be refurbished as some components show signs of stress. Based on age these are being sold as is and no returns. If interested, I have the two badge plates for the 4310. They are pretty beat up but free to any purchaser of this item that needs them. Shipping is only available for the 48 Continental United States.