This model has a silver natural finished aluminum body with o-ring seal and the 440C stainless steel striking blade (made from tungsten, carbide, and, cobalt).
Specifications:
Closed Length: 3.6"
Body Diameter: 0.625"
Rod Diameter: 0.25"
Weight: 1.8 oz.
Made in the USA
Information from Solo Scientific
It's a little tricky getting the right stroke down but this is an enjoyable addition to my EDC key chain. It's mostly fun to have I can't imagine too many situations where it would come down to using a striker to start a fire in my life anymore but if I need it I got it with this thing.
This thing is ok, but it doesn't throw sparks or light things "first try" as shown in the video. The screw-off handle is used to strike the rod, and if the angle is slightly off, the results are less than impressive.