Then he was on the door to its right, both hands around the transparent plastic knob, leaning in with everything he had.

They resemble the oversize plastic knobs on a toddler's toy.

A temperature control for the front passenger is a cheap plastic knob.

When I came back to my senses, I was holding the black plastic knob of a ball washer in my hand.

He saw a black plastic knob hanging down from a black wire.

The plastic knob is a budget version of the gleaming metal wonders in expensive German cars.

To ring the bell, the visitor twists a flat black plastic knob, called a key, on the turnplate.

Mr. Holbrook's design features a ribbed glass surface and plastic knobs.

We had another radio in the house, a rectangular wooden wireless with big plastic knobs, but you couldn't take that to bed.

She pulled out the plastic knob and yanked the cord again.