The new stands have three wheels mounted on a collapsible spring system. The operator simply rolls the stand into position under the car. The weight of the car collapses the wheels and pushes the base to the floor. The stand is equipped with a set of removable extensions to easily reach higher sill cars. The new collapsible stands include a screw-out extension that makes it adjustable between nine and fourteen inches.
These side sill stands are sold individually.