Features: brand new and high quality Made of high-quality 45# steel materials, practical and durable. Relies on bent extensions to quickly loosen bolts and nuts for light torque applications at awkward angles and in hard-to-reach locations. Spring loaded ball locks to prevent parts from sliding into machinery with square drive radius corners to reduce tool and sleeve wear. Tightly coiled steel springs allow you to reach awkward angles of up to 45° while maintaining great rotational torque transfer. Makes your installation work more flexible, comfortable and efficient. We offer 3 drive sizes optional, 1/4 (6.35mm), 3/8 (10mm), and 1/2 (12.5mm) for maximum versatility is a great addition to any toolbox. Specifications: Material: 45# Steel A Length: approx 15cm/5.91 inches B Length: approx 20.5cm/8.07 inches C Length: approx25.5cm/10.04 inches Type: A/B/C/3pcs Package Includes: 1x Hose note: 1.Please allow 1-3cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.