These are quite nice for the money!  As others have said, they are made by Amerock and are quality pulls.  I used them when refinishing a MCM dresser, and thought they did a good job of marrying modern with classic.  A couple things worth noting:
1.  They are definitely ORB, but have a matte finish to them.  This was fine for me, but sometimes ORB is more satin or glossy, so thought I would mention if you are combining with other hardware.
2.  The center-to-center measurement is, in my opinion, 5 1/32.  It's a minuscule difference from the listed 5 1/16, but if you're matching existing holes, you should know you may need to drill slightly wider or more narrow.  The pull is oversized compared to where the screws attach (they are on the 'inside' of the pull curve, and it has the extra flange on the sides with the faux screw), so it is wonderful to hide any mistakes or issues from previous hardware.