Handmade since 1900 Sennelier extra-fine soft pastels are sure to be appreciated by any pastel artist. They are water soluble and have an unparalleled softness and pigment intensity allowing even the most gentle of strokes to deliver a solid powerful line of brilliant color. Available in 525 colors. WARNING: This product contains a chemical known to the state of California to cause cancer. (Unbound Titanium Dioxide)