EZ Jack Pads are the best Jack Pads on the market. Incredibly Strong. Made with Recyclable Plastic. These Jack Pads can be used with a Hydraulic Jack, a Scissor Jack, a Horse Trailer, with Levelers on a Fifth Wheel, with Levelers on a Tow Trailer, or to level a Trailer or Motor Home. The purpose of the EZ Jack Pads is to keep the vehicle stabilizing system from sinking into the ground or asphalt. All four EZ Jack Pads are in Excellent Condition.