At age 69, and working with mechanical things all my life, I just had my doubts I would find these all that functional. But I am impressed by the quick straightforward assembly, and then they just work excellent. Easy to slip on, and thats all you do is slip them on and they’re made to stay put with no wrenches or fiddling, they just lock into place naturally by design. The skis are supported level and totally off the ground. Steering is easy. I use them on 2 late 90s Arctic Cat trail sleds, a 2013 Arctic Cat mountain sled, and a 2016 Polaris mountain sled.