Pneumatic action adjusts seat height from 25 to 31 inches quickly and easily. Oversized synthetic leather foam padded seat with 360º swivel. Heavy duty 1-1/4 inch (3.8cm) steel tubing frame with matte black powder coated finish. Extra wide foot stool base comes pre-assembled. 330lb weight capacity (150kg). Assembled dimensions: 16.9 inches deep, 16.9 inches wide, 25-31 inches high
