Kellogg's Research Labs, Body Temp 95°F (35°C), 0. 040 (1. 0mm) Shape Memory Nitinol wire, 5 feet

this stuff works great! I had to do a demo for school, at first i had a bit of trouble figuring out how to get it to work. i emailed them and they they got back in less than 24 hrs. turns out you have to cool the wire in ice water to get it to deform and it goes back to the set form with just abit breath or warmth from your hand. setting the shape wasn't too hard once i figured it out. I used a large surface area bunsen burner you have to get the wire to glow red and when you get it up to that sorts of temperature be prepared it will fight you a little bit sou make sure you have it secured well.

Product seemed to be as advertised. I'm not sure if I did something wrong, but after I heated and cooled the wire, it snapped when I bent it.

I'm a materials engineer and this stuff is great. I'm going to use it to make a present for my PhD advisor when I graduate. It works as expected albeit it doesn't really react at body temperature but I didn't think it really would anyway. There's enough for several projects, just be forewarned that you need a good way to hold it in place while heating it to red hot and then quenching it. It does take some skill to get it to work right but once you figure it out it is worth the effort.

Used it for science experiment with 5th graders

experimented and confused adults