In addition to the following, each peeler also has a side cutter which removes potato eyes and blemishes.
The Julienne Blade makes skinny sticks on carrots, zucchini, and cucumbers. Side cutter removes potato eyes and blemishes.
The Scalpel Blade thinly peels hard fruits and vegetables like apples and potatoes. Makes whisper thin pieces of hard cheese like Parmesan (beautiful floating atop a salad or soup.)
The Serrated blade peels delicate fruits like kiwi, mango, and even tomatoes.
Because you are using your steady hand to hold the item being cut and your moving had to hold the peeler, it is not as precise or fast as a mandoline (where that formula is reversed so you can speed through a cucumber in a few seconds.) If you're economizing on space (bundled together they'll take up a mere 5 1/2" x 3") and price ($15), these little buddies are a great alternative to the original.
• Buy The SwissMar Peeler Trio from Williams-Sonoma for $15.