... .passed the EN71-3,ASTM963-08 Typemechanical pencil (transparent type)MaterialplasticOriginHeilongjiang, ChinaMinimum Order Quantity50 ... ) Body Materials of mechanical pencil: Plastic. (4) Leads hardness of automatic: HB, B,2B, 3B,H ... , 2H and so on. (5) Leads dia of automatic pencil ... Blue,Green, Purple, Pink, blown color. (7) Our propelling pencil: Were Smooth writing and not easy broken. ...