Recycled Gray #4 is a whole lotta leftover pigments combined to make its own shade of gray. This gray is a cool, slate gray with mild earth tones from the raw umber pigment. Like all of our Sticky Caps, Recycled Gray #4 is made from professional grade pigments, essential oils, gum arabic, and honey. Apply with little water for an opaque finish, or apply more water for a watercolor-like look. Limited Edition - these cannot be remade!