I have a tire shop and I use this 5728 when stupid people don't know when to stop, pop on a spare tire and go 3 miles on a flat tire in my store is so flat and there is no sidewall to speak of. Not enough sidewall to push the bead off the rim. So thank goodness this work was excellent and after placing the bead release in several places the bead broke. I like it! It doesn't work well on lockable wheels so I only gave it 4 stars.