One of the most universal molecular model set this is a great starter for a teacher involved with inorganic and organic chemistry. Set comprises of 230 pieces, comes with a brief instruction guide and plastic container.
[16] Carbon (Black, 4 holes), [6] Carbon (Black, 5 holes), [14] Hydrogen (White, 1 holes), [2] Hydrogen (White, 2 holes), [6] Nitrogen (Blue, 4 holes), [4] Nitrogen (Blue, 3 holes), [14] Oxygen (Red, 2 holes), [6] Oxygen (Red, 4 holes), [6] Oxygen (Red, 1 hole), [8] Sulphur (Yellow, 2 holes), [4] Sulphur (Yellow, 4 holes), [2] Sulphur (Yellow, 6 holes), [4] Phosphorus (Purple, 4 holes), [2] Phosphorus (Purple, 5 holes), [6] Halogen (F) (Pale Green, 1 holes), [6] Halogen (Cl) (Green, 1 holes), [4] Metal (Grey, 1 holes), [3] Metal (Grey, 2 holes), [6] Metal (Grey, 4 holes), [1] Metal (Grey, 6 holes), [6] Orbitals -2D bonds (Pink), [ 6] Orbitals -2D bonds (Grey), [ 50] Medium bonds (Grey), [ 38] Flexible Long bonds (Grey), [12] Medium (Purple)
