One of our best-selling products! This ergonomic, adjustable chair works great as a bass stool! It is a portable, foldable chair with a seat that can adjust from 18 inches high to 33 inches high. Four rubber shocks under the seat allow it to flex forward, left, and right to accommodate body movements during those intense orchestral moments. The base of the chair measures 13 x 20 inches (W x D). The seat measures 13-1/2 x 10 inches (W x D). The chair folds flat for storage and measures only 4 inches deep when folded. It weighs 8 pounds and can support up to 300 pounds. A great solution for travelling with a bass stool, and essential in the teaching studio for accommodating students of different heights.