Two brushes, one formula, endless possibilities. Long-lasting, smudge-proof mascara formulated with a new polymer that improves water resistance, prevents flaking, builds volume & gives a soft & natural feel. Plastic injection molded brush The Definer is soft, flexible & comfortable to use. The unique shape of the bristles lengthens & separates creating lashes that fan out & appear longer. Twisted spiral brush The Volumiser has a tight waistline that collects extra mascara through the wiper & applies it evenly onto the lash instantly building fuller lashes without clumping.