| 摘要 |
An exercise device having weighted heads is disclosed. The weighted heads are composed of a light shell with a heavy core. The combination of a durable but light shell material with a denser core material results in weighted heads with reduced bulk. The reduced bulk improves the user's control of the device during use, reduces anatomical stress to the users arms and hands, and allows the user to lift a greater amount of weight while maintaining control of the device.
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