Sustainability meets function- many graphite and colored pencil artists use pencil lengtheners to get more use out of their pencil stubs. The Caran d'Ache Pencil Lengthener is made from metal and is a glossy red color. It is designed to fit hexagonal and round pencils with a small diameter such as Cretacolor Charcoal Pencils or Staedtler pencils. Suitable for Caran d'Ache ranges - Supracolour, Pablo and Prismalo. Simply push the lengthener onto the end of the pencil and voila!