NUOLUX Soft Clay Color Shaper Tips Sculpting Painting Tools - 9pcs (Black) Main Color: Black. Material: Plastic handle, rubber pen head. Length of the pen head: Approx. 8-28mm. Total length: Approx. 165-280mm. Used for carving, shaping, clay sculpture, modeling, painting, etc. Remove fingerprints on the surface of clay sculpture product. Delicate and small, convenient to use.