The Back Extention is a new design, through excellent processing technology and high-quality raw materials, the performance of Back Extention up to a higher standard. We are perfect for every detail of the Back Extention, guarantee the quality level, so as to bring you the perfect product experience. Shanghai Emprise Health Technology Co.,Ltd is a professional China Back Extention manufacturer and supplier, if you are looking for the best Back Extention with low price, consult us now!