Catachi is the brainchild of a decades old Japanese die-casting company and prides itself on designing goods with the minimum excess material. You'll find this range of ingenious ready-to-assemble cardboard works engineered for maximum strength, amazingly without the use of glue.

These origami-inspired polygonal stools look as good as they are functional. Their outer shell is constructed from a single sheet of folded colored card for a smooth finish, while inside is a complex, yet easy to assemble, structure that ensures they can withstand up to 100 kg. 

See here for Catachi's other style, the 5x2.

Paper, Cardboard 
Height 42 cm x Seat width 28 cm (hexagonal top, 48 side triangles)
Made in Japan