The central portion of the outer tube is removed using the electrical-breakdown technique to expose the free-to-rotate, inner tube.
The inner tube, when inflated, was used as a water toy, and as a floating object to lounge on.
By floating in an inner tube players expend less energy than traditional water polo players, not having to tread water.
Hovers around in an inner tube and on occasion plays a miniature guitar.
It consists of concentric tubes with refrigerant flowing between them and the water/freezing point depressant solution in the inner tube.
A special inner tube is inflated via its own valve stem to high pressure to push the bead of the tire tight against the wheel.
The earliest rubber condoms had a seam and were as thick as a bicycle inner tube.
The inner tube contains the channel assembly, which houses the firing pin assembly, including the detent lever.
