This Video Boroscope allows you to see inside places that are inaccessible. When I showed my son how dirty his ears were, he just about passed out. They are spotless now! With our newest version you no longer have to hold it up to your eye. Now, even those standing around you can see what you are seeing. Let's examine the many benefits of owning this fine tool. Before you spend thousands of dollars on an engine rebuild, look down the spark plug hole and verify that it actually needs a rebuild. Inspect inside rocker panels. Read part numbers that are in hidden places. Using this kind of instrument is how experts detected a fakey-doo 1959 Ferrari 250 SWB! Hundreds of uses around your home. Use it for pest infestations inside walls, clogged drains, dry rot, lack of insulation behind walls, the location of wiring and studs. The list is endless. Teenager locking you out of their room? Push it under the door and see if he's smoking your cigars. The full color, high resolution screen is 2" wide by 1 1/2" tall and is built into the tough, impact resistant case. The flexible shaft is 24" long and 6mm in diameter. Small enough for almost any crack or small hole. On the end of the shaft is a bright LED light to illuminate dark places. Your scope comes with a padded case and 4 AA batteries to power the unit. At this value price everyone should have a tool like this in his or her life.