You are bidding on 5 seeds of Koelreuteria paniculata Nana.  

It is a beautiful tree that gets large clusters of yellow flowers that develop into tan to brown seed pods and it has great green compound foliage.  This is basically a smaller version of the traditional Golden Rain Tree, that is ideal for smaller gardens, where space is more limited.  These beautiful plants grow best in full sun to part shade and they are hardy to zone 5 or colder.  They would make excellent additions to your rare plant collection, or just make a unique statement in your yard.

HAPPY GARDENING :)