... ,EN71and ASTM standards 3.customized,OEM are welcomed 1.double color pencil,7 inch,shape of round,triangle and hexagon, pre-sharpened ... material is basswood, and highly pigmented pencil core for brilliant permanent color, strong, long lasting leads.3.color can be 6colors ,12colors,18colors ... to contact with me, tks!Have a nice day! Double Color pencil