1. Micro-elastic support, comfortable elastic surface, physical auxiliary traction
2. Concave and convex double-sided design, safe stretching, step by step
3. Gravity curvature assistance, lie down to relax the cervical spine
4. Use gravity to naturally press down, stretch the cervical spine in three directions, horizontal stretching, curvature stretching, and upward stretching
5. V-shaped curve design, such as supporting your cervical spine with both hands
6. The neck pillow is made of semi-rigid polyurethane self-skin, with high density and high compressive strength