Oil change tube for emergency backup generator Honda EU20i

Had to change the oil at my Honda EU20i Backup generator and did not like to dirty it completeley! At YouTube I saw some videos that you could use a tube to change the oil.
Because none of the tubes I got at home fitted I created an tube by my own.
The "tube" is completely solid filled and so I printed it at a Ultimaker with:

• 0.06mm bottom and top (top and bottom can be cut off after print)
• 0.8 wall thicknes
• 0% Infill...
• 0.1 layer hight
• 150 % speed

Just refilled the generator and everything stayed clean!