After a month of use, the arm falls of every time we change the tissue. The inner piece that holds the arm on is made of plastic with a small slot in it, The smallest side of the slot cracked and the plastic piece falls out along with the arm. Our contractor suggested we use only delta parts because of the great quality. Its is not a good quality product. Our other delta products are holding up fine. Now I am looking for a spring loaded  tissue holder as this one was a waste of money.