we repair the car often used cage hoop, there are many models, this style is relatively easy to use, adjustable size, fast and reliable, easy to slip off. You can spare some. Price is one pair (big n small)

我们修车的时候经常用到球笼卡箍，有很多款，这个款式是比较好用的，大小可调，紧固牢靠，不易滑脱。你可以备用一些。标价是大小一套的价格。