Conforms to ASTM D-4236 9B-8B-6B-5B-4B-3B-2B-B-HB-2H-4H-6H Triangular shaped drawing pencils
Conforms to ASTM D-4236 9B-8B-6B-5B-4B-3B-2B-B-HB-2H-4H-6H Triangular shaped drawing pencils
Conforms to ASTM D-4236 9B-8B-6B-5B-4B-3B-2B-B-HB-2H-4H-6H Triangular shaped drawing pencils