Ergonomic Gamer Chair : Abandoning the traditional lumbar pillow design, the ergonomic curved design is directly applied to the lumbar position of the gamer chair. The streamlined back with the seat's rocking function fits the spine and lumbar area better than a regular lumbar pillow design, providing great comfort and relaxation for your back. High Safety Gaming Chair : JOYFLY gaming chair with the racing-style frame, Level 3 Certified Gas Lift, and Silent universal wheel has been tested more than 10,000 times. All structures passed safety and quality inspection to protect you from using it. Comfortable Cushion Design : The cushion with split memory foam padding is different from ordinary sponges, extremely resilient, not easy to collapse, and can better wrap around the buttocks. This gamer chair provides comfort for people of different body types.