The concept is about the uselessness and the absurd. Bas tries to catch that by making sculptures with ready-made objects, by changing, reversing or even demolishing their function. Usually causing the things not to work anymore, so they tell different stories. He always tries to use the most classical home-, garden- and kitchen-elements, as these elements stand closest to mankind. His sculptures are often useless, but because of the playful way of working and using colours, they seem to be full of joy and irony.