Features: The pneumatic extension sleeve is made of high quality chromium vanadium steel material, which is tough, hard, wear-resistant, durable and has a long service life. The pneumatic extension sleeve kit comes with a portable plastic case for easy storage and carrying. Electrophoretic black surface of the pneumatic extension sleeve does not fade, better wear resistance. Pneumatic extension sleeve kit is widely used in trucks, cars, vans and other models, is a practical tool in the garage. Specification: 100% brand new with high quality Type: Pneumatic Extension Set Quantity: 10 Pcs 9Pcs socket 10, 12, 13, 14, 16, 17, 19, 22, and 24mm 1 pcs Adaptor 1/4″ to 1/2″ for converted Drill to Impact Wrench