1. Seat height: should be equal to the length of the leg, the leg drooping naturally sit down, feet just landing. Too high, hanging leg, thigh too long oppressed poor; seat is too low, your thighs are less than the seat surface, the body weight of the concentrate to the hip pressure, for a long time will be uncomfortable. 2. Seat depth: the sit-based chair, seat depth should be equal to the length of the thigh, after just sit down and bend the knee to the edge of a chair, deep seat, back unfunded; shallow seat, thigh There is not enough support, not comfortable. 3. the seat and back of material: both should be "in a velvet glove" type - stand to be strong enough, but the surface of the elastic layer of a certain thickness. The outermost material with human contact should be breathable, abrasion, dirt, not easy to produce static electricity with the body or clothing. 4. back: best of the waist, back and neck to play all or part of the supporting role. The longer sit in a chair, supporting you have the better. Because only in the dining dining chair, they can ignore the neck, and office chairs can take care of it the best. Imported furniture dimensions are often more suitable for the production of the country's population, the selection need extra attention. Contact: Wang Yue new phone: 15722023064 qq: 2984226919 Address: Tianjin