I bought as the seller said it would fit a R50 which was not the case but I had the kit for a few months before finding out. $20 + shipping.
If it was any company or brand name product, there should be some sort of card or warranty information with it. I've found most ebay knockoff parts don't come with anything like this usually.
The lower ball is too small as my 04, my shifter ball is about 1/2" I believe this kit will fit up to 02-03 with grey shifter housing. $15 plus shipping