Rest surfaces are obviously carefully placed (including keypad) but unfortunately only for "experts" who type with all fingers blindly. Otherwise, they can not keep the wrist support on the support: the fingers are not where we expect them, and they mask the!
Council before buying: tinker a comparable size bracket opposite the keys and try to keep the wrists in the required position. Without happen, cancel the purchase or learn to type 'correctly', or buy this product as a binding device for learning to type ... It seems to me useful to be warned. The intrinsic quality of the product is not in question, but only the adequacy of the latter to the "bad" habits of the majority of users.