I think everyone is talking about the one I have which is the plastic white one, you buy the tray separately and the insert separately too. I have it too and LOVE LOVE LOVE it - takes a few seconds to clean and I literally wash down the lot in the sink with hot water and it looks like new. Ive used a few other ones at girls from mothers group and even though they try to keep them clean they just look yucky with food stuck in cracks and creases. The only thing that worries me as she gets older is that its only a lap strap not a 5 point harness but I have friends who have used it right up and with proper supervision havent had any trouble!
Its called Antilop if you want to look it up - not sure about the wooden one sorry!!