The endoscope is a flexible tube with a light and camera.
The mouthpiece was at the end of a flexible tube.
On many of these models, the video camera and flexible tube is submersible.
When she ran her hand along the strip, it changed itself, turning into a flexible tube.
It has a long flexible tube, and the smoke is drawn through water.
A doctor views the entire colon using a flexible tube and a camera.
The third had plugged a flexible tube from a bottle into its face.
It had a long flexible tube projecting from the top.
In longer, angled, or flexible tubes, part of the light intensity is lost.
Together they form a long flexible tube, which is hung down the side of the building.