Seen and read many comments on this or a similar product years ago...95% of the comments were that it is almost impossible to get all 4 or 6 of them in a perfect position to raise the trailer. Secondly a good chance of bending an axle if one flips out on you or slides. Third they are plastic and how strong are they really? So many posts lately about anderson levelers and their type breaking in half used on 10k rigs when rated for 30k....Seems the marketing of them is to save your tires from premature rot....well tires are alot cheaper and easier to deal with than a bent axle or two...
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