A simple metal cap with a rounded edge is commonly used.

A metal cap on one front tooth proved to her that it wasn't.

But my two friends had already encased their heads in the metal cap, and they could neither hear nor answer.

At this point the wine is bottled under a temporary metal cap.

The tiny face, half shadowed by the metal cap, grew larger, life size.

Simon slammed the other's metal cap hard against the floor.

The bottom end of the stick is covered with a metal cap.

These, he explained, were solid shot topped with a soft metal cap.

When they do, the plate can be covered with a metal cap for protection.

In the past few days he had been fitted with a metal cap while moving the fireflies about.