US Patent 7661394 Cat track

A cat track composed of several track sections when attached end-to-end in other than an endless loop has end caps to retain a ball that rolls freely in the track. Assembled, the sections may be used together with a cat scratcher and/or a cat spa or other animal toy to increase the animal's interest. The sections may be made in different shapes but are capable of being connected end-to-end to define a variety of patterns, either as an endless or open (non-continuous) track.