by Gai H.            
                 
            
        
        
        Difficult to sharpen without breakages. Fine to use on paper.         
	 
  	
        
            by Penelope M.            
                 
            
        
        
        I hadn't used charcoal pencils before and had to email for the best way to sharpen.   The regular pencil sharpener kept breaking the charcoal and I also found that sharpening with a blade tricky. It needs to be really sharp so you can remove the wood without snapping he charcoal. They are good value for money but not my favourite medium