Cheap Ebay roller rockers. Too good to be true?

Im a huge ebay fan im always browsing and shopping for deals. Part of it is im poor and cant afford to pay new prices for everything so I typically try to buy stuff used for cheaper. And the other part is I enjoy the thrill of the bidding lol. Anyways while browsing 360 parts i came across these roller rockers. Now rollers wasnt part of the plan but this price seems to be too good to be true. They are aluminum adjustable roller rockers with shafts and pedestals. They are 1.6 rockers. Do you thing that they are just junk that will never last or is someone finally throwing us mopar guys a bone by offering affordable parts? Here is the link tell me what you think.
Mopar Chrysler SB 318 340 360 1.6 Ratio Aluminum Roller Rocker Arms & Shafts | eBay