It's the Esbit stove, from Germany. It's steel, folds down to 3.9' x 3" x 3/4. It weighs 3.5 ounces with a fuel tablet that burns for 9 minutes, enough to boil some tea or soup. All in all, this is the perfect stove to bring when you're not sure you want to bring one, but aren't sure you want to do without,  either. Because it's so cheap and small. ESBIT has made this stove for  40 years, and it has saved the night for many travelers before you. Comes with 6 fuel tabs, and you can buy more cheap, from REI or us. 
The fuel tabs are readily available from us or from Campmor or online. And since all the stove IS is a fuel-holder and pot support, you can burn anything from yak dung to kindling in it. You don't need the tabs, but the tabs burn longer for their size than anything else, and should be your first choice.

Cook in well-ventilated areas. Although the fuel tabs are non-toxic, if you burn them in a closed area, you'll get a weird whiff.