Customised Ergonomic Office Chair : Are you Still looking for ergonomic office chairs that won't make you tired?🤔The bigzzia office chair is designed with adjustable Pillow Lumbar Support, headrest, upholstered armrests and comfortable cushions to provide support for your shoulders, lumbar, neck, arms and thighs!😃allows you to maintain the correct sitting posture for a long time~🥰 Adjustable Lumbar Support : this bigzzia computer chair has a Pillow lumbar support that can be adjusted up and down and lumbar depth as you like, allow you keep comfirt more the 8 hours Adjustable Headrest and Backrest: bigzzia desk chair is equipped with an adjustable padded headrest that allows the user to customise the height and provide personalised support for the neck.The backrest can also be adjusted to 120 degrees, which can effectively reduce lumbar pressure and improve work comfort. Breathable Mesh & Comfy Cushion : The sponge inside the seat cushion is 7 CM thick,and covered with breathable