Slow release tommy feed.

For the last two years, I've grown my toms using Levington slow release feed "plugs", and have had excellent results. This year, I can't seem to find any for sale anywhere. I've done a search on the web and can't find any. Any one got ant useful info/links?

not Levington but found these

http://www.ebay.co.uk/itm/Eazifeed-Slow-Release-Tomato-Plant-Feed-Food-Fertiliser-15-Tablets-/390778669922

or Osmocote ones are available

http://www.crowders.co.uk/buy/plant-and-garden-care/plant-feeds/osmocote-controlled-release-plant-food-tablets

Thanks a lot. I'd found the ones on ebay, but I'd really like to use the ones which have proven themselves to work. Wilco sold them last year, but no show as yet. They might emerge as the tommy season gets nearer.