Hardcovers are rare and only used in very important books; The silk cord is almost always white.

It was a red rubber ball with silk cords attached to either side.

She pulled forth a key that hung around her right wrist on a silk cord.

"Ah, then we will most definitely have to invest in more silk cord."

They beat me with silk cords and made me wait on them.

He ties the boy's hands behind him with a red silk cord.

He picked up the red silk cord, wound it around his hand.

Now he began the most enjoyable work, using other lengths of silk cord.

The silk cord was too short to allow them simultaneously to reach a weapon.

The thin man threw a loop of red silk cord at him.