ProtoArc EC100 Ergonomic Office Chair with 10cm Spring Cushion, Black【Tested for Safety and Durability】At ProtoArc, all of our chairs meet BS EN 1335 ergonomic requirements and have been tested by SGS according to ANSI/BIFMA X5. 1 for key strength and stability. They feature a TÜV Rheinland–tested Class 4 gas lift (EN 16955) for smooth,ensuring smooth, stable height adjustment and reliable performance for everyday and long-term use.【Ergonomic Office Chair】ProtoArc EC100 provides 4 support points (head, back, hips, hands) and proper lumbar support. You can esily adjust seat height, armrest and headrest position to suit work, study or entertainment. Ideal for users 162cm to 185cm tall.【10CM thicker Spring Seat Cushion】360° even pressure patented technology, 20 individual springs, and a 3-layer soft sponge structure provide ample support and high resilience. The widened and deepened seat padding is ideal for a variety of body types, particularly for heavier individuals【Lumbar Support & Dual Tilt Angles】The mesh lumbar support follows your spine’s natural curve, easing lower back pressure while improving airflow to keep spine cool. For added comfort, Two preset angles (90° for focused work, 130° for relaxed lounging) let you sit your way, all day.
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