This solar house number sign is just what we needed but I'm not sure it will hold up.  The unit comes with a set of numbers with sticky backing. You peel and stick to the white sign. There are 3 templates to help align a house number.  It is actually set up to work from the front or back.  The instructions were fairly straight forward with figures to follow as needed.  The stake is plastic, the rod metal, and the sign plastic.  We have all 4 seasons which I can't imagine this will withstand.  When put into the ground it sits just under the bottom of our mailbox.  The ground was so soft the weight of the solar unit pulls it.