Choose the right size:
Measure the internal diameter of the pipe with a caliper.
Measure the internal size of the tube with a caliper. Assume the inside length and width, but also measure the opposite corner. Note that the size between opposite corners should never exceed the maximum size of the base section! When in doubt, contact us.
Not to be used with drop shaped, oval & rectangular legs. Here you can often use the Footfixx Wood, which can be screwed into the current plastic cap.