As I realized in horror that the rods are mounted at different distances and was at the two extremes, a distance of more than 4cm, so that the head of my pet rabbit purely fit, we have attached to both edges with a hot glue gun 2 10mm thick logs, so the distance at about 3cm is .. One finds his beloved animals strangled in a hay rack, so I think this is absolutely worth Heuraufe not 5 stars, as it was not working well .. In my view, to 3 stars are perfectly appropriate if one considers the price. Delivery came thanks to Amazon Prime the next day.