1Suitable for all office use, effectively prevent cervical strain, suitable for long distance driving, to prevent long-term driving fatigue caused by cervical vertebrae, which can be used for lunch or pillow office. U type pillow is based on ergonomic principles for design of bus rest, set in the neck rest Shuya Zhumian role; U type pillow is especially suitable for long distance driving, can make the head of the driver to adjust the 15-20 degree, avoid the jugular compression, fatigue, is favorable for safe driving.2.Due to the characteristic of PVC material can not be washed, flocking U pillow facing cleaning problems. In general use after a certain number of which could not be used again, this reduces its service life, and large amounts of waste PVC material will cause pollution of the environment problem. Therefore, the emergence of the double layer type structure of the market, namely the bladder + Jacket structure. The magnetic health care pillow with U U-healer as the representative of the most well-known. It uses healthy environmental protection materials made into inflatable liner, no harm existing health problems PVC. At the same time, because of its coat use soft flannelette produced, more soft and comfortable wearing, the texture is more similar to the memory cotton material.