These necklaces are easy to slip on and off. They are easily adjustable in weight and easy to keep in the car when included. I received them and a week later it started snowing. There was ice on the streets under snowy streets. I put the chains on when the car couldn't move and with ease the chains were put on and then I drove off while the other cars had nowhere to go. On the next hill I went down I was able to avoid other cars that couldn't stop (I stopped on the hill and the other cars behind me skidded towards me and knowing they couldn't stop I drove off ) and others who were already stopped and avoided stacking 5 cars. I can already more than pay for these chains. It was nice to have light grip, too bad not everyone has it on slippery roads.