Kellogg's Research Labs, Standard Temp 115°F (45°C), 0.040" (1.0mm) Shape Memory Nitinol Wire, 5 feet

My college-aged daughter loved this birthday present. It worked just as expected: bend it willy nilly, then place it in warm water, and bam, the wire straightens. There is more she can do with it, but she's really pleased with it so far.

For line, the transition temperature varies considerable across the length of the wire. About half can’t be bent at all!

Looks like good quality, works fine for my project

but it's not perfect. Training it at 500 deg Celsius is not easy. A 1mm diameter nitinol wire has a minimum curve radius of about 3/8 inch, so it has limited shaping capability

Good thickness, do not try cutting into smaller pieces unless you have something that will cut through titanium wire. I received the product exactly as described

This product can quickly and worked perfectly for my application. Strong and easy enough to bend into shapes with a propane torch, and quickly returns to original shape with some slight heating.