From cardboard carnage to campfire whittling, we sliced, diced, and pried—here are the blades that earned a permanent spot in our pockets.

Folding knives have been around since the Early Iron Age and are a very safe and convenient way to carry a sharp blade, which folds into the handle.

With these Wirecutter-approved picks under $100, you don’t have to spend a lot to get a good deal this Amazon Prime Day.