What happens if the protector is on to long?

There are many problems with other, closed-type protectors, such as the cherry tree shown below. They attract mice and cause die-back and promote tree mold. Miracle Tube and Tree Pro protectors have built in features that keep your protectors from strangling your trees. Miracle Tube manufacturing process places linear lines in the tube walls that split as the tree trunk puts pressure on the tube, as shown below. Secondly, a razor perforation line runs the length of the tube which splits as tube ages and pressure is applied. These are fail safes only. We recommend inspecting your planting to remove your tubes once the trees base diameter reaches the tubes diameter. None of us want plastic in our woods.