Professional-grade PU core with ergonomic cervical curve and 10 therapeutic pressure points Removable, machine-washable comfort sleeve (80% polyester, 20% cotton) for adjustable firmness Relieves chronic neck pain, tension headaches, tech neck, TMJ, and poor posture Simple gravity-assisted traction - just 10-15 minutes daily on any firm surface Comprehensive instruction manual plus QR code for video tutorial Compact and portable - use at home, office, or while traveling