There are a bunch of these out there. You can watch all kinds of videos for tips and tricks to be efficient and make things a little easier. I would recommend you do that as you can easily scratch rims and stuff by just trying to go at it without any instructions first. Take it easy with the bead breaker as the support arms can bend easy. If you just take your time putting some pressure and working your way around the bead it will come off. I am not sure how to use the wannabe duckbill end of the pry bar to get the tire back on and it seems like brands have slightly different ends so finding a video on the one that looked like this was hard so I just used the pry bar side to get my tires on. Also the sturdier the base it's mounted the better. If you have a shop and can bolt it to the floor I would definitely do that. A pallet and sheet of plywood worked for me but it wasn't ideal.