Product review (5 stars): Works as expected = happy dryer
This dryer belt fits in the GE WSM2700DAWWW stackable dryer/washer. It's a bit cheaper in price than the GE options I could find (bonus!). I just installed it (8/25/15) and it's awesome.  I will report back if something unexpected happens.

FYI - It took me a little while to figure out how the belt is supposed to be installed through the pulleys for my unit. Attached is a photo for reference. Hope it helps.