If you're looking for some airing these picks are great value for money. I usually do 2 hoops at the same time, if nobody helps me then we can all do 4 at the same time. it takes a few tries to master. After the second time you will get the time and the appearance of the tires so you will know when to stop. It takes a few seconds to air out and you can hold them together by screwing them in. So overall it's a good product.