This Kit comes with Hexagonal unit cell , BCC or Cesium Chloride unit cell or Simple Cubic unit cell ( if you remove body centre atom then Simple Cubic unit cell can be made) ,CO2 or FCC & Rock salt or Sodium Chloride Molecular Model. Kit consist of all types of Molecular model that can be used to understand solid state and inorganic chemistry . Its very useful model which helps in understanding 3 D very easily with all types of Solid state models required to study solid state chemistry. Must for science students, teachers & researchers. Please note that models will not be shipped as assembled unit but they will come with Manual and pictures for helping and assembling models .