Specification:
Features: 1. Perfect combination of the two cushions 2. Genuinely soft &zero-pressure cushions for your neck &back 3. Humanized design perfectly fits your body,which protects your head &back more comprehensively 4. Concave surface perfectly fits and protects your neck 5. Skin-friendly & ventilated cover material 6. The design of 3D waist support conforms to human engineering  7. The design of double-sized thicker concave waist conforms to your vertebra 8. The design conforms to your back, which releases the pain from your waist 9. The design of concave surface, fits the muscle of the two sides your waist 10. The cushion attaches to the seat ,which releases the pressure form your lumbar vertebra 
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