dths03

I recently bought a driver online and opted for the Proforce ust 65 gold shaft. After ordering the club I've done a little more research and have seen the shaft in two different colors; black and yellow, purple and yellow. Anybody know why that is? What should I be expecting in the mail in the next few days? I'm just worried about getting a purple shaft and want to order another shaft while they are still on sale. Any help would be greatly appreciated. Thank you.