Part of the shipping of goods, in addition to Ningxia, Tibet, Xinjiang, Heilongjiang, Jilin, Inner Mongolia is not free shipping! Please contact customer service blessing supreme unique product, fashion and durable, environmental health, lead times, popular at home and abroad. The company developed a healthy family is a breakthrough in the chair of a new era of air travel, experience and technology in the 21st century combination of new products. The company has many years of production experience, combined with supporting advanced production equipment, laid the foundation for the quality of our products. Stylish and durable products praised by customers. Health Series chair, adhering clouds of traditional furniture craft, learn the essence of modern furniture, raw materials will be registered through the SGS test. Our patented and owns the number up to 50. Stretch breathable design, can promote blood circulation, relieve fatigue long ride, osteoporosis in the elderly, there is an excellent cone prominent slowing effect, is the new green health care products, is very suitable for long-term sedentary office, Internet cafes, home, leisure and entertainment. Chairs can be any conversion or swivel chair bow, if necessary, please contact customer service! The money is for factory activity products, thank you for your continued support, and one from the free shipping! Please contact customer service! Product Name: Fu Extreme Health Chair Features: Ergonomic design, elastic webbing, gutter design, ventilation cooling, reducing the area of ??the buttocks and back of oppression, pressing force at the point, and promote blood circulation hips back to avoid neck, shoulder, waist fatigue, relieve fatigue. Iron pipe using U-shaped tube, a plastic buckle design, a unique new rubber cord is cool features, beneficial to human health. Hot summer make you more comfortable, make you more comfortable. Make your life and work in the body to relax, maintain optimal mental state. Packing: carton, 3PCS / box. Product main structure: 1. Iron pipe: raw materials imported from Taiwan thick tube (1.2mm or more), the main mechanical properties, tensile strength, elongation (transverse), elongation (vertical) have been ISO9001 certification, , the bending angle of 180 degrees. 2. Rubber Ribbon: pure rubber refining raw materials are imported, is dedicated aircraft parachute seat belt material. With a nylon rope woven into later, after the soft-treated. So take comfort, breathable, not hot, safety, health; durable, never collapse; and can promote good blood circulation, eliminate fatigue; so you get to relax in the busy work, seemed more at work, pleasure. ① its elastic properties: elongation of 400%, 100% response rate, per chair of rubber to withstand the weight 200KG, rubber life for more than 6-8 years will not be broken loose deterioration. Resistant to cold, heat resistance: -40 ℃> + 60 ℃, the surface is easy to clean. ② rubber strip rope types: a round rubber cord strip bar, small flat strips, wide strips. Surface preparation of nylon or textile material (there are 110 small rubber round of the composition), brilliant color. Your choice. 3. Pressure Rod: 150KG can withstand the pressure, through ISO test, through the United States BFMA5.1 certification, SGS certification. 4. chassis components: After back 120,000 times before dumping pressure test. 5. Locate buckle: All nylon material and after heat treatment and cold with a 90 degree bend softness. Through years of experiments together. (Other manufacturers use artificial containing (PVC), PVC plastic plus fiber composition of this process easier in cold weather break) 6. Screw: After cold and hard, capacitors handle. Other manufacturers are no good paint handling capacitance protection of paint through paint handling, easy to scratch later on once 7. Nylon PU foot: using this technology will minimize the damage to the floor, can withstand 1200KG test. Other manufacturers only nylon feet.