love these pots of gold. they sit there for months just doing their job of odour destruction.no spraying into the lungs with air chemicals and they do a 24 hour job. these pots of gel are value for money. they are an old method but....the very best. they really do nutralise any smell within about a minute.from toilets to bins /pet areas etc. peel top and place wherever you choose, you are then free of nasty niff's for a month if not more. they were good enough for grannie so good enough for me.