This is a pack of 100 count fully colonized wood dowels. The wood dowels are 5/16 spiral cut. Colonized wood dowels are used to inoculate wood logs, stumps, dead trees, etc. Your wood dowels can be refrigerated up to 12 months before use if needed. We do recommend you use them as soon as possible to preserve freshness of the culture. You will receive 1 x bag with 100 colonized wood dowels. Full instructions come with your purchase.