| 摘要 |
A dumbbell is adjustable in weight and essentially composed of a carrying seat, a plurality of weighted blocks, and a selection device. The carrying seat has two parallel plates and a plurality of rods fastened between the two parallel plates. The plates are provided at the top of the outer side thereof with two hooked portions. The weighted blocks have a main body which is provided with two connection portions. The connection portions of the weighted blocks are located at various levels to enable the weighted blocks to be held together side by side such that the hooked portions of the plates are engaged with the connection portions of the weighted blocks contiguous to the two plates. The selection device is mounted on the carrying seat for enabling selectively a predetermined number of the weighted blocks to be coupled with the carrying seat.
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