GiGi Colorful Memory Foam Car Neck Pillow Car Headrest,Head Pillow,Rest Pillow,Protect Neck Zero pressure comfort neck pillow:Ergonomic design, effective release cervical pressure.Comfortable support for the full range of head and neck, the cervical part of the heavy pressure, fit the human cervical spine, effectively reducing the acceleration and deceleration of the vehicle, especially the impact caused to cervical spine. Pressure Relieving:GiGi Space Memory Foam has an unmatched durability because its high-density material guarantees strong durability and powerful support. Such kind of pressure relieving property avoids the pain and discomfort caused by rebound pressure or weight self-building. Blood Circulation Improvement:Softened or hardened according to the change of human temperature, GiGi Space Memory Foam shapes your body and eliminates the pressure point. The blood in your body can not be pressed but circulates freely. Hundreds of millions of viscoelastic temperature sense memory particles constantly move and follow your body shape. Scientific thickness natural fit:Maintaining cervical curvature, head and neck and shoulder and fill the gap between the seat Left and right button - Easy Installation.Comfortable and breathable