This bamboo lid is designed to fit both the 16oz and 20oz glassware, offering a perfect, natural fit for your glass can. Made from high-quality, biodegradable bamboo, this lid is not only eco-friendly but also safe to use. With a straw hole for easy sipping, these reusable bamboo mason jar lids make it simple to take your favorite glass container on the go. Whether you're enjoying a drink at home or out and about, the bamboo lid ensures convenience with a sustainable twist. To maintain the durability of your bamboo lid, we recommend handwashing and air drying for the best results. This bamboo lid is the perfect blend of style, practicality, and sustainability!