Cotton Fresh Odour Absorbing Gel 5 "Impressed. Subtle but effective." 21 January 2020 Love the subtle but very effective way this works behind the scenes. Love the Cotton scent, do not find it overpowering in our small toilet. Had it a few months and noticed how much the gel block had shrunk inside. Unscrewed lid and turned it over and it's still going well. Will be buying another one soon, wonder if it is possible to buy the gel insert as a refill without having to get another plastic container, especially in this time when we are all trying to reduce single use plastic. Would be good to have the option to buy a more attractive outer holder to hold refills in the future.