Great product

I'm a knife guy (former Corporate Trainer for Benchmade). Sharp knives are mandatory in my life. The Work Sharp system is the best possible solution for skilled or unskilled folks to get factory sharp knives in minutes. These replacement belts were necessary because our kids and grandkids regularly bring their knives over to get them sharpened (and it's good for us because we get more time with them!). I like the 400 grit belts as the next step up from the 220 grit belts for working knives, giving a strong durable edge.