Product review (3 stars): disappointed but not the item's fault
I was so hoping this would work between the washer and dryer.  Unfortunately it didn't.  I think it would probably work well between stove and counter and would get a  4 or 5 star for that purpose (the one advertised)  Alas, once I put it between my washer and dryer, it revealed an slight difference in height between the two I had not noticed (silly me) and the gap was too wide.  If anyone plans its use for this don't make the same mistakes I did.  Measure, measure, measure.  This gap cap has fallen in the little space between my appliances and has found a home half under the washer.  (gap is too narrow for me to fish it out in the position it lies).  It will take some moving and such to get the thing out.