I am a fully licensed supplier.CENTAUR II -SOUND SET (3 chips)SKU: SND-CENT2C$36.00PriceQuantityAdd to CartBALLY ROMSSET OF 3 (U3/U4/U5) ROM REMOVAL & INSTALLATION INSTRUCTIONS https://www.pinballrom.com/_files/ugd/0a3635_1f0af8ba09644eb78d30e50f112cf374.pdfWILLIAMS SOFTWARE LICENSE https://www.pinballrom.com/_files/ugd/0a3635_523e61bbc4f04fb5985c60266a76c1e2.pdf