Flexiness fitness products were created by a canine physiotherapist and certified canine fitness trainer in Switzerland.
The Flexiness SensiDonut Holder is an inflatable ring that stabilizes the Flexiness SensiDonut (sold separately). The ring can also be used by itself for different exercises; for example, as a target for your dog's rear legs when you're teaching side stepping with the dog's front legs elevated.
Note: The Flexiness SensiDonut Holder is shipped uninflated. An air pump is required to inflate.