I once bought a snow blower and it didn't last three years. I've been stuck a million times where something like this product would be infinitely valuable. Well I haven't been stuck since I bought them but that's not why I bought them. We live far in the outback and a lot of people get stuck all the time. Most new cars don't have a place to attach a kinetic rope or strap to pull them out, so I bought them to help others. These are the smallest so they're easy to dig through the snow like an avalanche shovel and then place under the drive wheels to pull out. NOTE: Wisdom for winter drivers. If you get stuck, turn off the "traction control" in your car. "Traction control" means the complete opposite of what you think. 90% of people with traction control could get out just by turning it off (most modern cars have it on by default). This product is a great product and appears to be very strong. They don't fold very well, but I still wouldn't bolt them to the outside of my car. I recommend.