I doubted to take spikes or Velcro, the opinions of the environment differed about the choice of rubber, but I took it at my own peril and risk. I have never regretted the purchase. Different pros: Quiet and soft rubber, now I can not stand the rustle of spikes Holds the road with a bang whether it's porridge, then dry asphalt, then an ice crust. Cons below: The car jumps out of the rut in the yards badly, but this is not a minus of this rubber, but of the entire friction.