ErgoSelect Spark Medium Back XL Seat Chair Armrests:Adjustable Arms +$95 Option: height adjustable lumbar support

Option: height adjustable lumbar support with 2-stage depth adjustment

Connect other devices using the two USB ports

This construction provides a solid feel

Freestanding dual monitor mount - no need to clamp or bolt the unit to a desk

it is possible to reach forward without having to round the back

ErgoSelect Spark Medium Back XL Seat Chair Armrests:Adjustable Arms +$95 Option: height adjustable lumbar supportThe ErgoSelect Spark chairs exceptionally comfortable seat and supportive back more than match its modern good looks. The heavy duty 3 lever mechanism, back height and lumbar adjustment promotes an ergonomically correct seating position with ease. ErgoSelect Spark Medium Back XL Seat Features: 3 lever ergonomic mechanism Seat slide Back height adjustment ErgoSelect Ergo seat foam Dal Apollo Black fabric Upholstered back with lumbar pump 160kg max