Material: PP+PE Packaging with cartons, independent packaging, customers can also request the arrangement of packaging. This car is an elastic waist on the factory's products are new, silica gel sets, can reduce the friction with clothes of lumbar! Characteristics: This product in accordance with the human body double back structure design, can be up and down around the trimmer, spring damping, so that the back cushion wings close to the human spine decompression, comfortable, while indirect massage waist and back.Holes design allows you to drive a car or office at the same time, the back can also feel comfortable cool! This product can be placed in a car seat, office chair, sofa, which originally only for rest or work with the tools to become health massage chair! This product uses the environmental protection material, no smell and no other mixed materials.Will not bring negative effect to human body, please rest assured that the use of!