C87 Chef Press Dicer Set
From the same family as the Fusion Master Mincer, Grater, and Chef Press Juicer set.
It makes vegetable sticks and cubes 1cm - 1.5cm thick.
The Chef Press Dicer set uses the same foot as those products, so you can get the parts for the Dicer it with or without the foot.
Here's how the Dicer works: