Today, top-shelf mountainboards, composed of wood, fiberglass and sturdy pneumatic wheels, sell for around $400.

She used a pneumatic abrasive wheel to cut through the Kevlar composite, neatly separating the hydrophone housing from the instrument bay.

New twin pneumatic wheels were fitted during the 1960s, and the guns were retained through the 1980s for live-fire training.

Since it was originally of a tricycle configuration the three pneumatic wheels came with wooden spokes and were 36 inches in diameter.

Some manufacturers are paying more attention to how a stroller or jogger performs, adding large pneumatic wheels and all-wheel suspension systems.

The K4 model was more modern and used pneumatic wheels as opposed to the K1's solid rubber rims.

The airship dropped like a stone, struck the ground on its single pneumatic wheel under the gondola.

The gun had a small shield and wooden-spoked wheels, although some were fitted with pneumatic wheels.

Large pneumatic wheels and a zero-degree turn radius allow you to conquer tight turns and small spaces.

If we could change anything, we'd put larger, pneumatic wheels on the stroller, but at this price point, we're satisfied with the stroller as is.