1R splints – single axis orthopedic splints used in all knee joint and upper limb braces, where apart from adjustment of the flection and extension angle, high lateral stabilization of the joint is not required, but important if low weight of the brace. Due to the low weight the splints are successfully used in all braced for children. They are manufactured with high quality polyamide with carbon fibres, making the splints light and neutral to the influence of sweat and salt, properly firm therefore assuring correct functioning of the device. Adjustment of the flexion and extension angle is performed with special Allen screw in every 15°. Each brace is equipped with an Allen key, which is necessary for adjustment. Standard length of the braces is: 280 and 380 mm. The splint and its design are patented in European Union by Reh4Mat Company.