Washing Line / Clothes Line Adapter for 45mm Pole

I have a 45mm diameter Rotary Washing Line. Most ground spikes are 50mm internal diameter, and the sleeves that come supplied only support 42mm. I made a sleeve adapter that fits nicely into a 50mm washing line ground spike, and supports the 45mm pole perfectly.

I also made an end cap for when the line is not in use, to stop the adapter filling up with water.