I just bought some cardboard. ✬

Tom filled the room with cardboard boxes. ✬

Cardboard boxes rip easily. ✬

I need some cardboard boxes to pack my possessions. ✬

This box is made of cardboard. ✬

There were three hundred cardboard boxes filled with old clothes ready to be sent to the disaster area. ✬

Tom rolled up the poster and put it into a cardboard tube. ✬

Tom looked in the cardboard box. ✬

Tom crushed the cardboard box with his foot. ✬

Cardboard is stronger than paper. ✬