The Big Rig Semi Trucks Mount Base is the starting point in building a strong, sturdy mount for your Big Rig Semi Trucks. The RAM-VB-168 No Drill Laptop Vehicle Mount Base has been designed specifically for use in the following trucks:Freightliner TrucksInternational TrucksKenworth TrucksPeterbilt TrucksVolvo TrucksThe base installs quickly and easily to the existing bolts connecting the passengers seat to the truck floor. The base plate mounts in a position to maximize the passengers leg space while also creating a foundation to connect a RAM swing arm mounting solution by using the telescoping pole (not included).