The Snap-on Tools Scope with Dual 8.5mm Imager, No. BK5600DUAL85, features a 36" long digital imager with an 8.5mm diameter head, and enhanced viewing on the units 4.3" diagonal LCD screen. The digital still images can be captured and stored onto the included SD card, and a touchscreen interface enables easy feature selection. The tool uses six AA alkaline batteries and includes a 90-degree glass mirror, magnet retrieval accessory and storage tray.