The hollow-fibres are used in the filtration process.

The jacket is made of hollow-fiber material.

The hollow-fiber material is commonly used in water filtration systems.

The pillow is made of hollow-fibre material.

I bought a pillow filled with hollow-fibre.

She felt a sharp pain in the hollow of her knee.

She held the hollow position for several minutes during her yoga practice.

He plays a guitar with a hollow body.

There are several hollow positions in the company that need to be filled.

The police found a box of hollow points in the suspect's car.