The Masontops Chalk Tops are the world's first premium all-in-one chalkboard lid for Mason jars. These BPA-free lids work straight out of the box without the need to mess around with stickers. Use them and reuse them over and over again without wasting your canning lids. Great for gifting, organizing, and storing. Work best with liquid chalk markers. | Masontops Wide Mouth Chalk Top Mason Jar Lid | Size Wide-Mouth