1. Practical and effective: used not only in inside and outside the room , but also in sitting, traveling and lying. Frequent use would effectively prevent and alleviate the fatigue in neck area .

2. Convenient for carrying: a handy design for carry- on easy.

3. Simple operation: portable and adjustable of angular and strength of traction by yourselves.

4. Safety: no pain, risk and any side effect when used in accordance with the instruction given.