Presentation Stations features include: Four laminate work surfaces with steel frame; Second shelf from the top is adjustable in height to 33", 37" or 40 1/4"; Clearance from bottom to middle shelf is 19 3/4", middle to top shelf 13 1/4"; 3" Casters, two with locking brake; Dark gray wood laminate with black powder coat painted steel frame. Available with or without locking cabinet.