Fine stainless steel. Cutting wire cuts cleanly. Wide mouth fits most cheese blocks. Equivalents. 4oz of shredded, crumbled, or grated =1 cup If you buy 1-pound blocks of cheese, cut into fourths so you'll know each chunk yields 1 cup of grated cheese without having to measure! That’s Essential Everyday. Our goal is to provide the products your family wants, at a substantial savings versus comparable brands. We're so confident that you'll love Essential Everyday, we stand behind our products with a 100% satisfaction guarantee. 100% quality guaranteed. Like or let us make it right. That's our quality promise. essentialeveryday.com. Made in China.