Similar to cats, ferrets are prone to hairball development from self-grooming. Be prepared, with Marshall Ferret Lax Hairball and Obstruction Remedy paste! Not only does this product eliminate existing hairballs, but it can also prevent future hairballs from forming. It gently works to remove any existing obstructions from other items your ferret may have ingested. This product comes in a great tasting paste that ferrets love.