343-Piece Giant Molecular Model Set, 99 Atoms

This giant-sized molecular model set contains 343 pieces, including 99 atoms ranging from 1 to 2 inches in diameter, along with bonds, connectors, and a removal tool. The larger scale makes this set suitable for classroom demonstrations where visibility from a distance is important. The atom inventory includes 40 hydrogen (white), 20 carbon 4-face (black), 10 carbon 3-face (black), 4 carbon 2-face (black), 1 nitrogen 4-face (blue), 3 nitrogen 3-face (blue), 4 nitrogen 2-face (blue), 10 oxygen 2-face (red), 6 oxygen 1-face (red), 2 chlorine (green), 2 fluorine (light blue), and 2 bromine (brown). Bond components include 16 double bonds (65mm), 6 turning bonds (70mm), 120 small bonds (16mm), 48 medium bonds (50mm), and 48 big connectors (65mm). All pieces are molded from durable plastic and stored in a hard plastic case.