Lyra Rembrandt Sketching Pencils White Pastel Oil - This white oil pencil has high covering power and stratifies perfectly. White oil pastel pencil is made with titanium dioxide and white clay combined with oils and waxes to make the core smooth, dense and pasty. On rough surfaces the stroke alternates from full to empty, giving an oil tempera effect. It is ideal for contrasting lines and softening the brightest features creating a three-dimensional relief effect in an image and determining its depth.