Princeton, who over twenty years ago created a synthetic version of the sable brush, have created synthetic squirrel bush. Princeton’s synthetic squirrel brushes, like their synthetic sable cousins, were designed to surpass their natural counterparts. Princeton’s Neptune™ brushes hold colour excellently and come in a large range of shapes, including mottlers and quills. The handles of these Neptune™ squirrel brushes are made of the beautiful sea glass which is the signature of the Princeton aquarelle brush line.