who bought us this cage for our two dwarf hamsters .... the construction was as simple as that our 12 year old daughter has managed it alone. Although the dimensions are given here to the cage is still amazed how big it really is. This is probably due to the three levels, but our two feel very reason so comfortable in it. CONT can not fall into the room and for the people that can be easily removed but here write the plastic was scratched upon arrival of the cage, it is a film for protection against scratches because of the glued plastic disc. We are completely satisfied with any case with this cage and can only recommend it.