
This item was purchased to replace regular wedges. When trying to remove one of the tires, I couldn't move the ratchet in any direction. I've tried several times and checked twice to make sure I turned the ratchet correctly. Finally, extra muscle was added, and the two support rings that hold the ratchet in place clicked. Now the ratchet did not contain the gear. Upon closer inspection, it turned out that these rings are made of cast iron. I removed the rings and ratchet and used a couple of channel locks to remove the device. Bad quality, not recommended