This borescope can save the owner many hours of work when retrieving dropped items from inaccessible areas on bikes and cars. It is also invaluable for diagnosis giving you the opportunity to look inside engines, gearboxes etc without the time and expensive of a full strip. The camera and LED lighting is 3.9mm diameter at the end of a 100cm probe enabling it to get into some very tight places. The full colour 2.4" screen is clear and easy to use. The brightness of the probe lights is easily adjustable. The camera also come with some clip-on tools; a mirror for when you need to look at something that you can't get the camera straight on eg the vales in a cylinder head, a hook to pick up items and a magnet. The unit can record still photographs as well as video to a micro SD card. The unit can also be plugged straight into a computer and even a screen for a larger picture. Ralph - "The magnet on my Laser bore scope has saved my bacon today, when I dropped a small piece of metal down the cam chain tunnel of a '77 Z1000 engine. Where is landed, inside the centre crank shaft bearing cap, it would have been impossible to find without this very small diameter probe and impossible to remove with a standard magnetic pickup tool. Without this borescope I would have had to remove and completely strip the engine/gearbox unit to retrieve it"