3 inches HDPE Breathable Pipe

Material : HDPE Pipe + PP flat cap.
Size : dia. 8.9 cm
Available Length : 33cm

Features :

If the tree is sick, it is convenient to administer medicine for treatment.

Foaming stone can also be added, which can increase the dissolved oxygen rate, provide oxygen
   to the roots, and make the trees grow better.

When it rains or waters, water and oxygen can quickly reach the roots of trees, saving water and time.

It can also be used as a fertilizer storage box to improve soil properties and provide a suitable
   growth environment for plants.