This cutting board is made of 304 stainless steel and Food grade PP. Each cutting board is not contain harmful chemicals such as BPA and phthalates.This cutting board can be used on both sides. It is great for all kinds of cutting, chopping. This cutting board has juice groove, It can prevent the juice from flowing out.Top of the cutting board is designed with a handle for easy to grip , convenient hang and storage.There is a knife sharpener design at the bottom of the cutting board, which can be turned out to sharpen the knife and make the knife sharper. When the sharpener is partially rotated 90°, the cutting board can stand on a flat countertop. There is also a grinding area on the cutting board to submerge garlic, ginger, lemon and other ingredients, which is very convenient and practical.