The me-too inventor of this new canine appurtenance calls it the Dogone Dog Gas Neutralizing Pad. He says that it:
Uses our famous activated charcoal cloth (washable and reusable)! A starter hole is placed in the cloth in order to help you locate the suggested tail hole. Carefully measure tail and cut-out hole to proper size.
(Thanks to Investigator Julia Lunetta for bringing this to our attention.)
