Ninja has hit it out of the park on the NeverDull™ Premium Knife System 17 Piece Set. I have been using them for about a month and I am very impressed. I use them every day and haven’t had to sharpen any of them. It does come wit a nice sharpener that is part of the knife holder.. Another couple things I liked metal quality, design, weight, very cool display holder, I would definitely recommend these awesome ninja knives to both friends and family