| 摘要 |
A buckle device for tightening a strap includes an opening formed in the middle portion for threading the strap. Two beams each includes two hooks engaged with the buckle device so as to be secured to the buckle device. The strap may be engaged through the buckle device and engaged with the beams before the beams are secured to the buckle device, such that the strap may be easily engaged through the buckle device.
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