Olympus PT-022 Waterproof Protector

Received this from an acquaintance about 6 years ago, but it has never been used.
The condition is clean, but there are minor signs of use, such as scratches around the lens.

Waterproof performance: Waterproof up to 40m deep.
Compatible models: Compatible with Olympus Stylus 300, 400, and 410 digital cameras.