Outfit your jars with trusted Ball Brand Mushroom Liquid Culture Jar Lids for reliable results in every grow. Each set of 6 fits wide mouth Ball jars, meeting the highest standards of growers who demand a secure seal and stable airflow for their cultures. These mushroom jar lids for liquid cultures are designed for both newcomers and advanced hobbyists who anticipate multiple projects or wish to run side-by-side experiments. Set up your workspace for efficiency using quality components - every set of 6 wide mouth culture lids gives you peace of mind that batch after batch will stay protected. Add your favorite mycelium and let your results inspire the whole Manitook Mountain community!