Guest chair with casters features a mesh back to mold to your natural curvature. The exhaust vent in the plastic cover under the fabric-upholstered, cushioned seat offers even more breathability. Nylon pads top the fixed arms that are built into the four square tube legs. Casters allow easy movement and relocation. Use for your lobby or large meeting areas. Stack up to four high. Seat measures 18-3/4" wide x 18-3/8" deep x 18-1/8" high. Back size is 17-3/8" wide x 14" high.Mesh back molds to your natural curvatureExhaust vent in seat for even more breathabilityPadded arms for comfortEquipped with casters for easy mobilityStacks up to 4 high