GTCHAIR Sync-sliding structure Office Home Ergonomic Task Chair

Specifications and material:  Dimensions: 34.6"×21.7"×26" (W×D×H) Color: black Plastic Shell:Grey PA Engineering Plastics+ glass fiber 30% Aluminum Part: ADC#12 polished strengthen aluminum Back(Headrest) Cover:High elastic Korean Wintex GT Mesh, 13mm super thin back design Lumbar Support: High density foam pad upholstery Seat:High elastic Korean Wintex GT Mesh Armrest:Paddle shift wire control, polished strength aluminum frame with PU cover Mechanism: 60Si2Mn Double Spring Paddle Shift Wire Control Mechanism, Aluminum Shell with texture baking finish, anti-corrosion and abrasion resistant Gas Lift: Customized Korea Samhongsa class IV 85mm drive, load-bearing 250kg Base: BIFMA Certified 350mm ADC12# polished aluminum base with reinforce rib and noise reducing caps inside Casters: BIFMA Certified 65mm black PU casters, rolling test for 100,000 times Bolts: Grade 12.9 hyper-strength bolts in key parts Function: Backrest: Backrest tilt can be locked in 15 positions within 33 degrees by arm paddle Lumbar Support: height adjusted in 5cm Seat Height: height is adjustable within 7cm by arm paddle Seat Sliding: seat sliding within 5cm adjustment Seat Sliding Tension: Revolving the knob under the seat can increase and decrease seat sliding tension Armrest: Height adjusted within 5 cm for 5 level and pivot in 3 directions within 35 degrees Mechanism: Backrest tilt tension adjusted by the rocking handle under the right side of the seat and laser coding for 5 years warranty S3-L Mesh Headrest: Rotation, angle and height adjustment Paddle Shift Wire Control System: The backrest tilt lock and seat height are controlled by mechanism via the paddle on the arm Sync-Sliding Structure: the backrest tilt will drive the seating moving forward smoothly to reach 56 degree in safe and comfortable condition APAS (Automatic Sitting Posture Adapting System): When backrest tilt is locked, the seating automatics sliding will create 23 degree to adapt different person’s sitting posture, and user will stop at the most comfortable position without operation Shipping: Ships in 5-6 weeks