**Product Specifications:**
**Brand:** BKT
**Model:** Ergonomic Lumbar Support Chair
**Certifications:**
- German IGR Ergonomic Certification
- GR, DIN EN ISO 26800/EN ISO 15537
- CSCA Certification (Certificate No.: CSCA24P10536M)
**Design Features:**
- Lever principle design for lumbar and back support
- 4-zone support structure for spine alignment
- Lever principle with hip support for core strengthening
**Testing Reports:**
- Shanghai University Mechanics Laboratory pressure dispersion test
- Comparative pressure distribution analysis with 5 different chairs
**Patents:**
- Utility Model Patent Certificate ZL202220992776.6 for auxiliary heat dissipation
- Utility Model Patent Certificate ZL202220992765.8 for coccyx protection
- Utility Model Patent Certificate ZL202121590554.3 for ergonomic appearance design
- Utility Model Patent Certificate ZL202220992764.3 for AAIA air circulation
**Recommended Weight Capacity:**
- Below 100 pounds
- Above 100 pounds
**Color Options:**
- Elegant Grey
- Mysterious Black
- Lotus Pink
**Usage Instructions:**
1. Place the chair properly
2. Sit down and adjust your position
3. Lean back against the lumbar support and sit deeply
**Caution:**
1. Stretch periodically during prolonged use
2. Be cautious of potential wear on wooden floors, chairs, or leather sofas
3. Consult a medical professional if experiencing back pain before use.
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