EACH SLEEK ALUMINUM SHELF PIVOTS WITH A SMOOTH DROP-RESISTED MOVEMENT TO REVEAL ITS UNDERSIDE, FEATURING INTERCHANGEABLE, CUSTOMIZABLE ARTWORK AND MATERIALS, OR THE BEAUTIFUL LUSTER OF THE CLEAN ALUMINUM FINISHES.  all components are made from solid extruded aluminum with a durable anodized finish.  made and assembled in the USA.  Every shelf is 16" wide x 9" deep and a minimal 1/4" thick, holding up to 8 lbs per shelf.  The modular rail-based design along with customization options, allow Riveli to be tailored to the style or size of any space.