- Kit includes hardw are for mounting to the Thor VM1 Smart Dock VM1001VMCRADLE or the Marathon vehicle dock FX1005VMDOCK.N/A- RAM ball size D (2.25 /57 mm).N/A- Kit includes a round base with a D (2.25 /57 mm) RAM ball for the vehicle side mounting. Hardware for mounting the base to the vehicle is not included. This mount typically requires drilling holes in the vehicle.