Mesh Office Desk Chairs Ergonomic Task Chairs with Adjustable Lumbar Support Mid Back Swivel Chair Purple

Back Height Adjustment: This multifunctional office chair allows our customers to position the backrests lumbar support area within a fixed range for their customized support. This ergonomic feature helps fast forward your office hours throughout a day by releasing the pressure of your back spine with full and customized support to your back and lumbar.
OPTIMIZED COMFORT: The seat is soft padded with high-density foam and a double-layer mesh cover to upgrade your sitting experience. Thick padded upholstery is soft to touch and sit, double-layered mesh cover and high-density filler is resilient, which ensures deformation-resistant.
STURDY &DURABLE: This office chair is combined of plastic &mesh back, foam-padded seat, steel gas spring and nylon base &wheels. Premium plastic is durable and rust-free, no need to worry about humid environment. Standard market size with great bearing capacity, the maximum capacity of this mesh office chair is 136kg/300lb.
ADJUSTABLE SEAT HEIGHT: Seat height of our ergonomic computer chair can be adjusted for 45-55cm/ 17.7 - 21.7. It has the flexibility to customize our customers preferred sitting position according to their needs. Simply pull the lever beneath the seat while sitting if you want to lower the seat.
Center-Tilt Tension: Users can choose to tighten or release the tilt tension while rocking back and forth by turning the knob beneath the seat.