4 anti-slip mop holders have spring-loaded rubber cam that grips handles 7/8 inch to 1-1/4 inch (20-30mm) dia. Shelf: 18-gauge (1.2mm), 36 inch Long, 6 inch H, 8 inches D (915 x150 x 205mm). Holds mops 8 inches (205mm) from wall. Satin-finish, stainless steel. 3 stainless steel rag hooks. Rod for wet rags below shelf.