Sennelier and R&F. Sennelier has a classical range of colours of good quality and are by far firmer (because they uses mineral wax in their sticks?) R&F sticks are the best probably… handmade with love and natural wax. They come in a most delicious range of colours: Dianthus Pink, Celadon Green, Egyptian violet, Turkey Umber Greenish… … Continue reading Oil sticks