HON Training Tables without Grommets, 72 by 18 by 22-1/2-Inch to 32-1/2-Inch, Light Gray Training table with no grommets adjusts in 1" increments to the height you need, ranging from 22-1/2" to 32-1/2" The rectangular top features laminate over 1-1/8" thick, solid-core, high-density particleboard Underside is sealed to resist warping