Metal Cluster, Trigonal Bipyramidal, 5 Prong, Bag of 100

This is a bag of 100 Trigonal bipyramidal metal clusters. These parts are useful for sp3d hybridization of pentavalent coordination compounds, sp2 hybridization for double bonds in Organic Chemistry. Aromatic rings, and cis/trans alkene isomers which all use double bonds. They are bronze colored.