Office chair comes with all hardware & necessary tools. Follow the desk chair instruction, you’ll found easy toassemble, andcomputerchair estimated assembly time in about10-15mins.Desk chair using high-density sponge cushion, more flexible,office chair with a middle back design,rectangular ornamentnot only as adecoration, itcan provide goodlumbarsupportmakesyoufeel comfortable.All the accessories of our office chair have passed the test of BIFMA, which is a guarantee for your personal safety.The mesh chair can bear the weight of 250lbs.It is a good choice to add one of ourcomputerchair in your officeorput adeskchair in your home/activity room.The cushion of office chair, armrest accord with human body engineering design, let your body and mesh chair perfect fit,suit long time use, and new nylon base give you creative design.Our office chair can satisfy all your daily needs.Ergonomically designedwith highly ventilated mesh