First the case this set comes in is very nice with molded plastic to hold all the pieces in place. The latches aren't just bent over plastic that tend to break off but plastic latches that swing on a pivot which will last longer. The gauge itself has a rubber coating protecting all sides of it. The kit comes with quick connect adapters to make it easy to disconnect while you thread the hose into another spark plug hole. The quick air release button makes it simple to relieve the pressure before moving on to another cylinder.
Lyle Swann 
