Professionals who pivot between treatment zones will appreciate the mobility of this rolling stool. A widened 21.3 in base steadies the seat while an Sgs-certified three-stage hydraulic gas lift adjusts the seat between 21.7 and 28.0 in. The thickened 3.9 in high-density foam cushion and breathable Pu surface resist compression through long shifts, and five silent Pu casters roll quietly across tile, carpet or hardwood. An integrated footrest relaxes lower legs whenever precision work demands a steady posture.