This Ti-Time Titanium foldable knife is made from grade 1 or 2 titanium.  Titanium is ultralight, anti-corrosive, and leaves no metallic taste in your mouth. 

The foldable feature helps you save space.
Weight: 0.5 oz (14g)
Dimensions: 6 7/8" (175mm) when unfolded. 4 1/4" (106mm) when folded.