This is kinda what they are,
http://www.afitnessequipment.com/Rub...l-Package.html
DUMBELL RACK WITH RUBBER COATED DUMBELLS - The ones at sams were 5-45's and the rack was made by TSA. The weights may be Weider name brand, but who knows where they are sourced from. There are probably a few comps that make all the dumbells.
These are nice because of the grips. I would go with commercial quality, ivanko or something if you have cash and want the higher weights. This is just fine for any home BB.