While it is difficult to say, you need 3-4 years to travel on it. On another Velcro, I got into an accident with a coup, just because of the loss of traction (one wheel on the slush, the other on the road, this would not have happened on the spikes). That's why I switched to spikes. So far, it’s unusual: the car slows down more quickly, well, and all the nuances. And so, yes, I advise you to switch from Velcro to spikes in winter in Hong Kong. I switched to these, I like them.