Occasionally these are painted as squares on the road but more often a metal stud is used.

A small metal stud protruded from the ground in front of her.

You all will have tattoos and metal studs in your faces.

Yet another added metal studs to his tires for biking on ice.

The main doors are of wood and contain metal studs with different designs.

Behind her right ear was the same metal stud he had found on the man.

The door still contains the original metal studs, which were a sign of wealth in the 18th century.

"First I put metal studs into the needlepoint where it was unfinished," she said.

"So far, the most promising thing I've tried is to cast the shot with metal studs."

After a moment, his fingers touched a combination of metal studs, and the door swung open.