Frederick Studio Padded Adjustable Piano Chair - Mahogany Adjust from 17 - 21.5 in Height Deep, Mahogany Satin Finish, Solid Hardwood Construction 2 1/2 of Padding, Rich, Full Grain Vinyl Top, Felt-Lined Bottom For Zero Echo Dual 2 1/2 Lift Knobs, Zinc Plated Galvanized Steel Components 3/4 Solid Steel Drive Screw, Double X Braced Lifting Mechanism, Solid Riveted Scissor Mechanism (No Bolts)