Quality Assurance - All the accessories of our office chair have passed BIFIMA test, which is a guarantee for your personal safety.Our desk chair is constructed of hard-wearing and high breathable nylon mesh , durable star base, solid rolling casters and SGS-certified gas cylinder. The mesh chair can bear the weight of 250lbs. 5 star heavy duty base with 360 Degree Swivel Wheels, Running Smoothly On Floors.office chair computer chair mesh chair desk chair mesh chair. Easy to Install and Practical - The office chair comes with all hardware & necessary tools. Follow the desk chair instruction, you'll found easy to set up, and computer chair estimated assembly time in about 15mins. It is a good choice to add one of our computer chair in your office, put a mesh chair in front of your home, and put a set of our computer chair in your activity room.Office chair desk chair computer chair mesh chair.