This is a professional fruit and root vegetable washing and peeling machine We have different brushes for different products and different purpose: 1 if for fresh potatoes, we always use 9 hard brush rollers 2 if for old potatoes, we always use 5 hard brush rollers & 4 emery rollers for thoroughly peel 3 if for thin peel potatoes or carrot, we have soft brushes to lower the waste rate 4 if just for washing, no peeling, we also use soft brushes to wash off the surface dirt, meanwhile achieve polishing purpose, like mango, orange, carrot washing and so on 5 if for cassava, fish scale or oyster, hard brushes or emery roller is better 6 if for ginger washing and peeling, we also have specialized brushes