Matured microworm cultures in three bags. Maturity allows for instant use once they crawl up the side of their new container. 16oz deli cups may work best for instant harvesting purposes.
Keep refrigerated if you cannot propagate (start/spread/make) the culture in their new containers. It will slow their metabolism.
Does not come with substrate supplies or yeast. Two backup sleeves will be included to keep in your fridge. They will expire, dependent on how long they've not been refrigerated.