Transform your jars into your new favorite on-the-go tea infuser! Our Tea Infuser lid is BPA free and made from recycled materials, especially designed to bring even more uses to your regular mouth mason jars (jar not included). We recommend using a 16 oz. jar for best use. When properly secured, the lid will provide you with a drip-free seal, allowing you to turn the jar over for better seeping. To use, apply force until lid snaps in. If you are having difficulty assembling, please run the band over hot water for 30-60 seconds and then try to snap in the JARWARE. Connect, brew, relax! It's as easy as that. Because, let's be honest, everything's better in a mason jar.