Includes 74 pieces neatly organized in a 9.25" x 6.75" x 1.5" storage case Demonstrate VSEPR theory used to predict the shape of molecules Set includes enough parts to build eight atomic models Great for educational activities Instructional booklet included Demonstrate VSEPR theory used to predict the shape of molecules with this complete set that includes enough parts to build eight atomic models- linear, bent, trigonal planar, pyramidal, tetrahedral, trigonal bipyramindal, and octahedral, each with a different shape. Included in set: Instructional booklet, 9.25" x 6.75" x 1.5" storage case, Elements: 1 Carbon, 1 Oxygen, 1 Nitrogen, 1 Sulphur, 1 Phosporus, 1 Chlorine (4 holes), 1 Boron, 1 Metal Beryllium, 7 Chlorine (1 hole), 6 Fluorine, 13 hydrogen, 6 circular lone pair orbitals, 26 pear shaped bonds, and 8 short bonds. Perfect for educational activities and experiments