Simple adjustable dog cavaletti.  Two variants are provided with print profiles:

• Cavaletti Small - adjustable in 1cm increments from 4cm - 7cm - 26.7mm outer diameter (schedule 40 ¾" pipe, NZ/AU 20mm int. dia. pipe)
• Cavaletti Large - adjustable in 1cm increments from 6cm - 9cm - 26.7mm outer diameter (schedule 40 ¾" pipe, NZ/AU 20mm int. dia. pipe)

Also available as plain 3MF files are versions of the above for pipes with 20mm and 25mm outer diameter.

I use the smaller version with my dogs ranging from 8kg to 12kg, and the dog pictured is also using the smaller version.

I've printed these in both PLA and TPU95A.