... use.Conforms EN-71 and ASTM-4236 standards Usual pencil size:3.5'and7"Usual lead size:2.5mm,2.8mm,3 ... .0mm,4mm,5mm.Usual packing:color box,pvc bag,blister card ,tin tube/tin box,Customized packing.Usual pencils shape: Ergonomic round,triangle ... and,hexagon Usual style: Pre-sharpened and unsharpene Packing :as ...