Because of its compact size and very low weight the boards are easy to store and quickly within reach. Despite its size, the boards ensures that a jack remains stable and prevents it for sinking on soft surfaces. Because the underlay boards are on both sides provided with an anti-slip layer it prevents slipping of the jack or of the board itself. The ease of use is increased because the underlay board is provided with a convenient handle.

In combination with a set of boards of 300 x 300 x 30mm, it is an indispensable tool in order to be able to exchange a tire of on spring rim safely and quickly, as this rim is not mounted on the vehicle. The dimensions of the board are appropriate for the diameter of the the most common spring rims.

The underlay boards are manufactured from high strength extruded plastic – PE500 – and each board has a capacity of approximately 10.000 kg. They are very easy to clean with a damp cloth or rinse with water. In contrast to wood, this material can not absorb moisture and prevents weakening of the pad and is ruled out the formation of fungi. In addition, the material is also UV-resistant.

By its ease of use and high safety of the underlay boards when changing a tire on a spring rim, which is not mounted on a vehicle, these are indispensable for anyone with a expedition truck.