These small 4" bowl covers are made of cotton fabric and can be a sustainable alternative to plastic wrap and even foil that can leak toxins in your food. They fit snugly on the outside of small jars or small bowls, making them perfect for preserving the freshness of your homemade jams, sauces, or leftovers or soaking grains, fermenting, proofing, refrigerated dough, keeping dust out, and dressing up jars. At Sistainable Mercantile & Refillery, we prioritize eco-friendly choices, and our Reversible Jar Covers align seamlessly with our mission to promote refillable and recyclable home items. Switch to a healthier, more sustainable option for your kitchen storage and reduce your plastic footprint with these practical and stylish covers.