The brain-teaser, Campanile by Naef Toys of Switzerland.

Cylinders for children the Fluctus by Naef Toys of Switzerland.

The fascinating little diamond, the Diamant Metallic by Naef toys of Switzerland, shimmers in attractive ice blue, soft green and silver tones.

Small and subtle the little brother, Cella Edelholz in Precious Wood by Naef of Switzerland, is by no means inferior to the large version, on the contrary.

Look at the geometric world, with the Ornabo Blocks by Naef of Switzerland.

Stackable triangles the Vivo by Naef Toys of Switzerland.

Fascination of diagonals the Versi by Naef Toys of Switzerland.

Plugging, clamping, playing the Regolo by Naef Toys of Switzerland. This creative game, designed by Kurt Naef in 2004, is made up of two different basic building bricks, which not only can be placed on top of each other but plugged into each other as well.

Color, form, tone the Rainbow by Naef Toys of Switzerland. Nine arch-shaped elements made of layered maple wood are both play objects and acoustic bodies.