If you don’t like Rubik’s cubes, Tetris, or nesting eggs, then these kitchen knives might not be for you (never thought I’d write that sentence).

Designed by Mia Schmallenback, these ‘Meeting Knives’ nest one into the other to both conserve space and serve as a visually-appealing art piece for your kitchen or, kitchenette, or wherever underground bachelor pad.

The knives fit together ingeniously utilizing the lines of the knife above and below them to shape the unique blades requisite in any complete kitchen. And, if that weren’t intriguing enough, their natural lines evolved from the Fibonacci sequence, and are based partially on the average width of the human hand. Get them from Chef Studio Boutique for about €400.