The 3r80 joint is one of the products of Ottobook. This product is a powerful joint for people with high weights, and with a high level of activity who want to continue their activities as before. The 4 axles in this joint make it one of the most reliable joints for weighting even at high weights. When walking, the fifth axis starts working in the back view and causes lateral balance for the person. Therefore, this joint is also suitable for walking on uneven surfaces. Another feature of this joint is its excellent performance in different humidity. Introduces the 3R80 bus as a waterproof joint, which assures the user that using the joint in high humidity environments will not wear out the 3R80 components in any way and will not change the joint's motor mentality. The 3R80 joint is one of Otobook's hydraulic joints with a 150 degree bending angle. Using the EBS system while moving helps the joint move more smoothly. Simultaneous bending of the knee in the swing phase This joint, just like a normal knee, has controlled movements to adjust the bending weight. Therefore, we will not face problems such as pulling the prosthesis, or tilting the side in the pelvis due to short compensation of the other side. Import of this product is now possible through cyber medicine. Cyber ​​Medical, as the main supplier of prosthetic parts, allows you to order the product and get it to you in the shortest time. All products of ottobook company with active warranty and after-sales service can be provided and ordered in