Convert standard Mason jars into stylish storage jars easily with these sustainable bamboo mason jar lids. Made with sustainable bamboo with a removable silicone seal- this lid comes in standard size. Turn old pasta jars, canning jars, etc into storage of all kinds from the kitchen pantry to the office with this sustainable zero-waste swap! Size: Fits STANDARD-size Mason jars, regular mouth, 2 3⁄8 in (60 mm) inner and 2 3⁄4 in (70 mm) outer diameter Mother Earth Approved: Made from high quality and smooth, naturally antimicrobial bamboo, this is a great addition or gift for those trying to live more sustainably and repurpose glass jars they already have. Note: The words "mason jar" are only to express compatibility, not for trademark. Mason Jars not included.