What is "elastics"

Usage examples of "elastics".

There were at least four of the little nose-and-mouth painters' masks hanging from elastics which had lost most of their snap.

He didn’t know if it was for practical reasons, or for utilitarian reasons, but he packed one of her cloth-covered elastics in case it was important.

Marilee—equally freckled but beginning to trade her baby fat for height—carried a surfeit of hair goodies, combs and elastics and a few things that Brenna couldn't even identify.