Home Use Cervical Vertebra Correction Neck Protector Support Traction Device $ 29.75 Product information: Material: Pu, Tpu, cotton cloth flannel + Sbr front support bracket Whether it is self-heating: No Applicable scene: fitness equipment, health massage Product category: tractor Color: manual pump inflatable type, hand-squeezed ball inflatable type Specification: Free size Packing list: Support tractor*1