Compact design. I have 19" wheels and need to it put the inflator on its side when the valve is up the instructions say the car has to be off (not running) but i need my 2016 hyundai santa fe sport running to turn the inflator on.overall makes tire inflation good job (1 minute for a 5psi increase) Too bad there is no place to store the inflation aid pin, fuse and included adapter so you don't lose them when you pull the cord.