5 Feet Nitinol Shape Memory Pre-Trained Wire (1.0Mm 40 C (18Ga 104 F))
You can re-train it if you want by heating it (500 C for 45 minutes) in the new desired shape. The wire has a lustrous titanium color (dark grey) with a bluish oxide tint on its surface. When freshly cut, the inner core is nickel white.