You are bidding on 5 seeds of Musa balbisiana. 

 It is a beautiful popular perennial that gets great huge exotic green foliage, and clusters of unique flowers that develop into unique but seedy bananas.  These beautiful plants are hardy to USDA zone 7b, possibly zone 7a, although fruit production is generally limited to zone 8b and warmer, and they grow best in full sun to part shade.  They would make excellent additions to your rare plant collection, or just make a unique statement in your yard.

HAPPY GARDENING :)