You are bidding on 10 seeds of Koelreuteria bipinnata. 

 It is a beautiful tree that gets large clusters of yellow flowers that develop into stunning orange-red seed pods and it has great green compound foliage.  These beautiful plants grow best in full sun to part shade and they are hardy to zone 7 or colder.  They would make excellent additions to your rare plant collection, or just make a unique statement in your yard.

HAPPY GARDENING :)