For sale I have a set of 4 Project Kics 15mm 5x100 to 5x114 adapters. Bought them with the intent of using them, but changed plans last minute. 2 of the nuts were stripped so I replaced them with the newer nuts. You still need a special tool to tighten them tho, and the price reflects that. I will include a link where you can buy the tool. The tool needed for the other nuts is included, you just have to buy the 4 prong tool.
Asking $225 Shipped! You will spend $400+ for them brand new.
Nut key:
http://www.shop.upgrademotoring.com/...LKICWTSKEY.htm