Don't get me wrong they're useful. They help the crutches stand up and be less likely to tip. But honestly thats all the praise I can give them. The main issue I have is that the to top magnets piece are not long enough to extend past the crutch cuff. This results in the magnets not being able to fully make contact SIGNIFICANTLY reducing their ability to stick together. The advertisements are more tame here on smart crutchs than geckos own site but you cannot carry one and support the other because without the magnets making that full contact they aren't strong enough to support the weight. Additionally (not smart crutches fault) the wrist straps gecko sells are not long enough to reach your wrists even on the smallest forearm setting, which I use. I use them every day, but I wish they were better.