Customizable clip written in openjsscad.
Customize: Just edit the parameters(bottom left), click "update" then "Generate STL" and "Download STL". BOOM ready to print.
The Example you can download directly at Thingiverse is for the "Intex Quadra Frame Pool" to hold the covering tarpaulin. For the sides rounded version i reduced the resolution to 32.
Parameter for this:
inner diameter: 58mm
Printed with PLA.
Something wrong or missing?
Source Code @github.
File an issue.
Or even better create a pull request.