| 摘要 |
A play device for being thrown generally like a football. The device has a tubular body that has a generally barrel-like external shape and a large central through-passageway. Its shape, light weight and central passageway combine to provide relative slow, soaring and irregular flight characteristics, making its path somewhat erratic and the device often a challenge to catch. It is made of a lightweight but shape-retaining, tough, resilient material such as polyethylene that will bounce harmlessly off walls or a person it may engage. The device may be formed with one or more openings through its wall such as a continuous or intermittent spiral groove that extends from end to end.
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