Furkle keeps fit

Furkle has a much longer life span than humans – he could easily live to be 120 years old! But in order to do so, he must keep fit. That’s why he likes to go the Squashed Mountains with a special piece of exercise equipment.

How does Furkle use the equipment? Why must he go to the Squashed Mountains to use it? Does he attach it to his body, or does he bounce it?