Chrome plated zinc alloy with polished stainless steel tube, hard black plastic liner. Clamp-on feature eliminates drilling rail and simplifies relocation. Mounts on vertical or horizontal rails. 7/8" to 1" diameter and 3/4" diameter by reducing mounting bolt length. Available in 2 models: Chrome plated zinc tube with stainless flange or chrome plated brass tube with bronze flange. Both are 9"L x 1 5/8" ID x 2" OD.