With a flexible 12-inch shaft the STEELMAN Spark Plug Starter makes installing hard to reach spark plugs much easier saving both your time and your knuckles. The hand-driven knob gives the same tactile feedback as traditional hand starting and allows you to feel if a plug is aligned properly and prevent accidental cross-threading. The 12-inch flexible shaft can bend and adjust to fit each individual plug location and the knob will turn in any configuration while the spark plug holding end can accommodate most brands and sizes of spark plugs allowing for use on a wide range of cars trucks and other vehicles.