The STEELMAN 10150A 16-Inch Flexible Gooseneck Bend-A-Light Pro is a must have when you need to shed light into those small, tight spaces. Measuring in at 15.75-inches overall, this light has a 9.5-inch long flexible gooseneck whose brass alloy construction lets it retain shape when bent or twisted to allow it to easily reach around corners and obstructions. The compact 5/32-inch diameter tip is small enough for the light to be used in a wide range of tasks including heavy machinery inspections, automotive engine troubleshooting, as a bore light for gun maintenance, or for computer and electronics repair / inspections. A protective cover is included to prevent damage to the bulb or gooseneck during storage that can double as a handle extension to provide additional reach into recessed inspection areas. Two (2) AA alkaline batteries are included for your convenience. Filaments in the tiny, high intensity incandescent bulb can last for up to 4 hours of continuous runtime. When burned out or in the event of breakage, the bulb is designed to be easily replaced using the STEELMAN 12100 Bend-A-Light Pro Replacement Bulb.