Purchased for motorcycle theft prevention.
It is solid and solid. However, the surface turns and goes round and round. Sometimes it can not be locked well, do not you know what this is for? I think that it is a function unnecessary separately, but what is it for?
It is used for rear wheels to prevent theft of large motorbikes. Although it is a tire of 190 size, I think that it can not be used unless it is this wide size. Although it is the cap of the key part, this wide size is made of soft plastic and it is attached to the main body, it is designed to open and close, but it seems to prevent invasion of garbage without touch feeling to be removed. The body is also very solidly made, yet it does not matter much heaviness as well.
It is quite solid building, due to price. I think that there is also a crime prevention effect visually. However, if the length of the bar is five centimeters longer, you can lock the wheel by straddling the front fork. The width is sufficient.