Aquarell Pencils have a hexagonal barrel made from the best natural PEFC-certified cedar wood, with a coloured end the same colour as the pencil lead. They have a 4mm diameter lead for a better yield and are made from permanent high-pigment powders which are UV resistant. The sharp and bright colours become perfect watercolours on paper thanks to emulsifiers wax. They can be mixed and blended without limit. Aquarell coloured pencils have an exceptional solubility for creating excellent transparency.