The utility model relates to a tightening belt which is convenient and elastic, and comprises a first tightening unit and a second tightening unit. The first tightening unit and the second tightening unit each include a rack portion, a fastening portion, and a piercing portion. The insertion portion includes an extending piece body, two connecting walls, and a parallel piece body, and the extending piece body, the connecting wall and the parallel piece body jointly define a passage. When the fastening portion of the first tightening unit and the fastening portion of the second tightening unit are engaged with the buckled composition and the buckled product is worn by the user, due to the first tightening unit and the second Resilience of the tightening unit, and the rack portion of the first tightening unit and the rack portion of the second tightening unit are in close mesh with each other, and the first tightening unit and the second tightening unit can be tightly clamped together The user.一種可便捷鬆緊之束緊帶，包含第一束緊單元及第二束緊單元。該第一束緊單元及該第二束緊單元各包括齒條部、扣合部，及穿設部。穿設部包括一延伸片體、二連接壁，及一平行片體，該延伸片體、該等連接壁及該平行片體共同界定出一通道。當第一束緊單元之扣合部及第二束緊單元之扣合部扣合於被扣合物且該被扣合物穿戴於使用者時，由於該第一束緊單元及該第二束緊單元之彈性，以及該第一束緊單元之齒條部與該第二束緊單元之齒條部的相互緊密嚙合，該第一束緊單元及該第二束緊單元能共同束緊該使用者。
