Yaheetech Office Chair Ergonomic, Desk Chair with Adjustable Headrest, Armrests, Lumbar Support, Lockable Height-adjustable Swivel Chair with 90°-130° Reclining Function Light Gray

"Ergonomic Design for High Comfort: This office chair is suitable for all body types and offers adjustable headrest, armrests, lumbar support, tilt angle, and seat height. The S-shaped backrest promotes a comfortable sitting posture, even during long working hours. Comfortable Tilt Function: With the knob under the seat, you can adjust and lock the tilt angle of the backrest between 90° and 130°. This allows you to lean back to relax or tilt forward to promote an upright sitting position. Adjustable Headrest & Armrests: The headrest can be easily adjusted up and down by 8 cm to suit your sitting position. The 45° adjustment helps you find a comfortable tilt. Additionally, the armrests can be adjusted in height by 7 cm. Mesh Chair with Wide Seat: With a seat size of 53 × 52 cm and high-density foam, this office chair relieves pressure on hips and thighs. The breathable mesh fabric on the backrest and headrest provides comfort. The FSC-certified seat plates support responsible forest management. Stable & Safe: This swivel chair has passed the EN1335 test and is SGS-certified (Report No. SDHL241202405001FT). With a stable 70 cm diameter base that holds up to 136 kg, the gas lift ensures durability. It has successfully passed the BIFMA test, as well as 100,000 impact and 120,000 swivel tests, providing stability and durability for daily use."