In 1963, Hélio Oiticica started producing Bólides. They are box-shaped works, mostly in wood or glass, but also in plastic, containing different materials such as pigment, soil, water, mirrors, shells, pieces of fabric or paper, photographs or poems. Often, they look like improvised three-dimensional constructive compositions, but the spectator-participant is invited to explore all the different possible meanings of these objects: opening drawers or doors, manipulating materials, sensing their smells, contemplating their colors. Bólides shifts the body scale of Penetráveis (Penetrables) to a smaller scale, suggesting the possibility of holding the artwork in your own hands.