These carbon graphite rods are used for stirring molten metal.
They are 12" long and 1/2" in diameter.
Graphite is good because metal doesn't stick to it, it doesn't contaminate the metal, and it retards oxidation.
For casting small objects. Press model directly between two pieces of cuttlefish. The soft shell makes a smooth walled mold. Sprues, gates and vents are cut into the wall with a sharp knife. The two halves are held together with binding wire and the molten metal is poured into the cavity. Each sold individually.