Product details:These Expressioniste Brow Pencil Refill Cartridges are compatible with the ‘Holder’ (sold separately) – the ultimate investment in the future of your eyebrows. Incredibly fine for precision, the four shades – ‘Blonde’, ‘Brunette’, ‘Rousse’ and ‘Raven’ – facilitate creation of believable hair-like strokes, to build up ‘volume’ gradually so you look naturally blessed with enviable, Hepburn-worthy arches. We're obsessed! Surratt Expressioniste Brow Pencil Refill Cartridge - Raven