Peeler
You can peel some vegetables with a knife. I’ve peeled carrots by scraping them with a knife blade. But a peeler is faster. And try peeling a potato with a knife. Not easy.
This peeler is sharp, and the carbon steel will stay sharp for a long time.
You may not have used a Y-peeler before, but I think you will really like it after you get used to it. It peels a thinner layer off than most straight peelers. The wide handle gives you a good grip, with a lot of flexibility about how you use it.
For example, to peel carrots try holding the fat end of the carrot in your fingers and resting the other end of the carrot on the cutting board. Pull the peeler down the carrot with your other hand. After each stroke, spin the carrot slightly. Fast!
Try to clean the peeler right after use. It’s easier than when some food dries on the blade, and it will stay sharp longer. You can put the peeler in the dishwasher, but I don’t. The blade gets dull faster.