The WS11X door stop used to be under the Glynn-Johnson product line as the WB11X until they merged with H.B. Ives. At that point they became the WS11X. This stop only is constructed of cast brass and then plated to your desired finish. The stop has a 2" diameter base and projects from the wall 3-3/4". This particular model is the same as the WS11, except that it is designed for a masonry type mounting and ships with an expansion sheild.