The heavy-duty Ozone holder has a super sharp machined screw that will easily instal into most trees. Once installed the user can easily instal the ozonics onto the threaded end of the adjustable holder. After installed tighten the wing nut up and against the bottom of the unit to hold that position. You can now rotate the unit into position and loosen and tilt the ozonics into the desired position. Re-tighten to hold that position. Folds flat for easy transport.