Constructed of hardwood solid and Ash veneer Tops have a decorative reverse diamond pattern with an ebony inlay border L-Desk: 68 3/4" long x 28" deep x 30 1/2" high Center drop-front drawer has ball bearing extension guides, electric/USB outlet bar, pencil tray, and wiring access cutout Outside drawers have dovetail joinery and ball bearing extension guides Top outside drawer has a felt-lined bottom, all others have veneer bottoms Bottom file drawer accepts letter or legal size files L-Return: 46" long x 23" deep x 30 1/2" high Center drop-front drawer has ball bearing extension guides, electric/USB outlet bar, and wiring access cutout Door encloses an adjustable shelf with ventilation cutouts and a bottom pullout shelf on ball bearing extension guides Desk & Return have interior wiring access cutouts