I thought these would be a great idea. I was wrong.

The rubber spikes are made well. However, the bands which go over the shoe are 2 pieces of Velcro glued together. When I got mine, the Velcro bands on one of the cleats had come apart and needed to be glued back together. (I use epoxy all of the time so it was no problem for me.)

I liked the idea of how easy they go on. But it seems that they slide off even easier, and when you don't want them to.
They are good for walking a few steps in snow or on ice. But don't plan on wearing them too long.