| 摘要 |
<p>An animal amusement and exercise device has an annular body having spaced apart, overlying flanges (4, 5, 7) forming a laterally open, endless track (12) for the accommodation of a freely rotatable ball (11). The body defines a cavity (3) in which a compressible pad of material (13) removably may be accommodated. Each of the devices includes connectors (15, 18) for removably coupling such device with another like device in vertically stacked relation. The track (12) of each device is accessible from outside each device thereby enabling one or more animals to have access to all of the tracks.</p> |
