East End Imports EEI-718-BLK Stellar Highback Office Chair, Black Ergonomic office chair with lumbar support Pneumatic seat height adjustment 360 degree swivel Tilt tension control Upright locking position Dual chrome and black tones Waterfall seat design PU,PVC Overall Product Dimensions: 24"L x 26"W x 46 - 50"H Seat Height: 18 - 22"H Backrest Height: 29"H Armrest Height: 26 - 30"H