What type of materials did paul klee use?

Paul Klee primarily used oil paints, watercolors, and ink in his artworks, often experimenting with various techniques and mediums. He was known for his innovative use of color and form, frequently incorporating mixed media elements. Klee also utilized pencil and charcoal for drawing, allowing him to create intricate, whimsical designs. His works often reflect a playful yet profound exploration of abstraction and expression.