You are bidding on 5 seeds of Pithecellobium dulce. 

It is a beautiful and unique extremely fast growing tree that gets very beautiful powder puff white flowers that developinto red bean like pods and unique green leaves.  These beautiful plants are hardy to USDA zone 9 or possibly colder with protection.  They would make excellent additions to your rare plant collection, or just make a unique statement in your yard.

HAPPY GARDENING :)