Features: This wrench kit includes 9 pieces of wrench with different sizes. Satisfying various working needs. Type A to F for option: Allen wrench/ star wrench/ Allen wrench with ball end, short arm or long arm. Long arm offers extra reach and greater torque. Ball end design to access socket cap screws up to a 25-degree entry angle. Made of high quality chrome-vanadium steel, sturdy and wear resistant, durable to use. After heat treatment, the hardness is above 60HRC. Easily remove and install screws, widely used in bicycles, motorcycles, RC cars, vehicles, machinery, home appliances, furniture, musical instruments, toys, etc. Note: Size and color may be slightly different due to manual measurement and different lighting conditions. Thanks for understanding.