I have ordered several of these frames and I'm extremely pleased with them.  They are inexpensive but very nicely made.  The narrow frame shows of your artwork more, IMO.  (I don't use a mat either.) 
 The larger frames come with hanging hardware that you have to attach yourself but it's very easy, all you need is a measuring tape or ruler, a phillips head screwdriver (I recommend a stubby ratchet screwdriver), and a wire cutter to cut the hanging cord.  There are instructions if you need them.  The smaller frames have the little sawtooth hangers already attached.