You must remove the pan in order to have the entire length of the wrap held by the rings.
It is not possible to remove the rings because the fabric is sewn all around. They are not afraid of washing. (If you want, you can put the wrap in a small canvas bag for more protection when going through the washing machine).
For information, washing is done at 30 ° C, gentle spin (500 turns), and the dryer is not recommended!