Every member of the family should have this product in their car. Easy to use, the Slime unit can be used to check tire pressure and allow for quick mobile tire inflation when needed. I somehow hit a nail in a tire while walking and my tire pressure light came on. I had no place nearby to check or re-inflate it. Needless to say, how much time I had until the tire was completely deflated was a very stressful question. I managed to get to my dealer and get a tire plug after experiencing more stress than I wanted (I recently retired to get away from the stress!). After this experience I ordered a slime block and now I'm completely calm!