FABER-CASTELL Studio Quality Permanent Oil Pastels - Box of 36These studio quality oil pastels from FABER CASTELL are a great way to work with intense colours on a wide range of surfaces. Excellent for lines, cross hatching, pointillist effects, and areas of intrense colour. They can also be wiped like conventional pastels. Here's a few tips 1. Start with the darker colour and overlay it with a lighter one or, alternate the colours (hatching) and then wipe with a finger. 2. Light oil applied to a drawing with a