This is Naomi, from Shijiazhuang Wonderfu Rehabilitation Device Technology Co.,Ltd, which is a company with more than 15 years of professional experience in manufacturing and export the prosthetic and orthotics parts, our company is a physical manufacturer, we have our own precision workshop, CNC, lathe,laser cutting work shops, and our own assemble workshop, so we can reduce the cost price greatly, so i can give you the best price and the best quality products. Our advantage is complete kinds products, good quality, excellent price, best after-sales service, and specially We have our own Design and Development teams, all the designers have rich Experience in prosthetic and orthotics industry, So we can provide professional customization (OEM service) and design services(ODM service) to meet your unique needs.The single axis knee joint with manual lock is an important part of prosthetics. As a manufacturer, we have advanced technology and a complete after-sales system to ensure the quality of each product. Looking forward to hearing from you.