Easy to assemble. Height adjusts infinitely between 28" and 44". Twin-wheel swivel casters provide smooth-rolling action. Two locking and two non-locking casters. Walnut, wood-grain laminated 3/4" particle-board core with plastic edge molding. Chrome plated "H" base and column for aesthetics and durability. Designed to meet the requirements of HCPCS code: E0274. Supports up to 30 lbs. of dispersed weight. Warranty: One Year.