Then fit the cap around the pole. A gap will appear where it grabs onto the pole (see pic) Then fit in the 10mm piece and super glue it in placejust at the top of the feet, Taking care NOT to glue to the pole. When dry, remove from the pole, apply more super glue to the inner ring, and wrap some insulating tape (optional) around the body. It should look something like this. You will now have a tight gripping, fully removable end stop that will stop you from trapping your pole hose on the floor. I have worked with this on for around 18 months and never has it fell off, yet can be removed if need be.