Although at first glance the Big Cheese looked small cheese it trapped my troublesome squirrels without causing them any injury, e.g. no trapped tail. It was unbelievably simple to use and trap the squirrels. I had fear of them bashing their way out of the cage when trapped, but the strong spring loaded door was always secure and held it's contents. I highly recommend this product, especially at the price of £16 including p&p, it's pound cheaper than any of its rivals. I trapped 6 squirrels, who had invaded my loft, within a 10 day period.