These stools use skateboards as their seat plates. To be clearer, skateboards that have survived their original use are re-purposed. A bolster has been fitted in a way that covers as small an area of the (raddled) back side of the skateboard as possible. The legs are assembled easily with screws (the holes are already there from the skateboard wheels). Construction is strong and light.
The bolsters are made from leftovers from the furniture industry (there are always suitable sizes in the leftovers).