The Hubble Telescope Metal Earth model is a laser cut model that once assembled creates a unique 3D model. The pieces are cut out of a sheet of thin metal, just carefully pop out the pieces and follow the assembly instructions to create your 3D model. The Hubble Telescope model is recommended for ages 14+ and measures approximately 3"x2"x2.5" when assembled. The model does require needle nose pliers or tweezers for assembly.