This is a genuine set of 9 BMW clamps, consisting of (4) 37-57, (3) 44-64, (1) 64, and (1) 66. They are suitable for use with R75/6 R90 R100 AIRHEAD motorcycles. These clamps are made by BMW and are designed to securely fasten and prevent any vibration or torque from affecting the performance of your motorcycle. They are compatible with various BMW models and are easy to install, ensuring that your bike remains in top shape.