1/2 hex shape resists breakage and stays put without rolling onto floor.
More economical, longer lasting than ordinary wax crayons.
Ideal for marking - timber, metal, rubber, concrete, plastic, ceramics, smooth or rough surfaces, construction materials, sewer and water pipes.
Lead-free, non toxic.
Softer crayon marks easily in cold climates.
Weather resistant, fade resistant.
Marking temp range -50 to 150F.