
Foldableandcarryable Thesix-speedanglecanbeadjusted,canberaisedorlowered,adapttoacomfortablesittingposture,andcareforthecervicalvertebrae Thinto4mm,staticload-bearingcapacityofabout32500g,doubletriangledesignsynchronousforce,stablecenterofgravitywillnotfallbackandforth Aluminumalloymaterial,solidandstable,high-frequencytypingdoesnotshake,easytoworkandstudy





