This chair feature a heavy duty metal base, not cheap plastic base used by others.

Features:

    Comfortable Chair

    Attractive, supportive, breathable Black mesh back and mesh fabric seat.

    Comfortable arm rests

    360 degree swivel for the chair.

    Weight Limit:  250LB

Dimension:

  overall dimensions:37.4"-40.5"(H)*23(W)*24(D)

   Seat Size: 20.1"(L) x 20"(W)

   Seat height: 17.7 - 20.9" adjustable height

   Back size:  19.5"(L) x 18.3"(W)