With the Stardupp Roof Rack you can take your iSUP everywhere, whit out having to inflate it every time. Lay the boards on top of your car, the foam parts of the strap are laid flat on the boards, attached by pulling the strap through 2 open doors, and tightened by the buckle. Do not run the straps through your vehicle’s open windows with the doors closed – you will not be able to open the doors. Do not overload boards. Regularly check that the straps are tight enough. Respect regulations regarding items carried on roof racks.