Complex artificial materials, known as metamaterials, are part of this science's tool bag.

The second prize was a tool bag worth three dollars.

The estimated value of the lost tool bag was US$100,000.

Mr. Brown started putting things back into his tool bag.

A motorman reaches for his tool bag when there is trouble.

With a little luck, she pulled herself to her feet and retrieved Jake's tool bag.

"But now I think it's something you ought to look at in your tool bag."

For Christmas this year he gave his wife a set of tools and a tool bag.

Cohen pointed to the tool bag and grabbed a wrench.

I took a detector from the tool bag and cautiously approached the fence.