JONPONY Heavy Duty Gaming Chair for Adults and 350LBS Reinforced BaseThickened Seat Cushion Adjustable Armrest Big and Tall Ergonomic Office Computer Chair with MassageBlack

Premium PU leather material      Height adjustable gas spring cylinder Orthopedically and ergonomically designed 360 degree swivel rotation to move with mute wheels Lock tilt function and Heightadjustable gas spring pneumatic Be sure to follow the instructions when installing Load Capacity 350 lbs Overall Dimensions26.4x26.8x49.652.8Lx W x H Backrest Size 22.8 x 32.7 W x H  Seat Size21.1 x 22.8 W x D  Package Included 1 x Gaming chair, 1 x Installation Tool, 1 x Install instruction 350LB Heavy Duty Sturdy BaseUpgrade trayEffortlessly adjust,multitilt mechanism.Mute racing wheels,360degree smooth.movement,protect the groundGas Lift, Class3,commercial explosionproofgas lift, Enhancedstability and securityReinforced nylonstar base,recommended loadbearing 350LBWide Wrapped BackWrapping feeling of racing seat backUnique design of diamond latticeThe cushion is flat, soft and hard350lbBearable weight155,Adjustable Back Angle Between90155 Degrees360 DEGREE SWIVELFind the ideal and comfortable positionADJUSTABLE BACK ANGLEAdjust the backrest between 90155 degreeand lock it ant any angle