Fur removing toy for cats (Poets MK40)

Kong brand. The wider base at the back of the plastic cat slides under a door or similar so that it is held in an upright position. The front has a brush type texture, the idea being that cats like to rub/scratch their heads and bodies against this which is enjoyable for them and surplus fur from their coats is collected on the 'brush'. In the base of the front of the toy is a lift up compartment where catnip can be stored to attract cats to the toy. My cats simply never got the idea and just stared at it looking puzzled even though I left it there for many weeks. Maybe your cats are more intelligent than mine? If you'd like to give it a try it can be collected from the Poets area of Bedford - this is the area around Shakespeare Road. It can be left out in a safe place for collection at any time as long as I have some notice.