Even if the support is not very cheap (for the money you get already half a car jack), so I did not regret their purchase. I have "10008 Hydraulic trolley jack Unitec" used in the wheel change (summer / winter) in combination with one, and thereby have a positive experience since the underbody of the vehicle can not be held to the extent affected by using these rubber pad, as in mere use of the jack with its steel support plate.
