Series 20S Bench Height Conductive Fabric Upholstered Chair with Waterfall Seat, ESD-Safe, Adjustable Seat 24in-34in Height, Three Lever Mechanism for Individual Lift and Tilt, Adjustable Height/Width Armrest with ESD-Safe Soft Arm Pads and ESD-Safe Arm Frames, Aluminum Base with Footring 18in and ESD-Safe Soft Urethane Casters (Must Specify Color Choice)