It is a simple but unique instrument made of wood.

Bottesini's bass was said to be a unique instrument with a remarkable sound.

Aboriginal music has developed a number of unique instruments.

Each tribe has unique traditional instruments influenced by their customs and materials available.

The documents are not counterfeit, he said, but unique financial instruments.

"I thought I mentioned that it was a unique instrument."

European cooperation is a unique instrument when it comes to fighting international crime.

The result is an unprecedented instrument, completely unique, with a wonderful tone.

"I collaborate with them to create a unique instrument."

As a military contractor, the company distinguished itself by manufacturing unique electronic instruments for the federal government.