Both of my cars required the tyre sealant to be replaced. The original Ford 300ml canisters had expired in 2015 and 2020. These 450ml replacements are great and so much cheaper than Ford's own. Quick delivery too! Just one minor observation... Whoever is manufacturing these for Ring need to get the information leaflet inserted so that you can see the expiry date when the shrink wrap is applied. I was able to shuffle the leaflet around inside the shrink wrap. And of course the shrink wrap will be ripped off when they are used in anger anyway so this isn't a big deal.