Also, their tough skin is sometimes used to make high quality leather, especially for gloves.

They have tough thick green skin that is highly resistant to pain.

You've got to get a tough skin to say no.

The fruit's tough skin makes it particularly easy to handle.

But his armor and tough skin could take it for a while.

Just keep your eye on the ball, develop a bit of a tough skin.

Men have tougher skins than women, but this comes at a price - oil.

She had a tough, brown skin and the hard flesh of her peasant stock.

Besides a dozen years' experience on the job and a tough skin, the Fed chairman has something else going for him.