It is wooden. This says it all. In 5 rides, the plastic axles and wooden wheels broke and got destroyed. 90 euros for 30 minutes of use from a 2-year-old child. Unsuitable product like all wooden ones!
Get a regular metal one, remove the pedals (2 minutes of effort) and once they learn balance, they will have a regular bicycle.
Update: I burned the wooden one in the fireplace because whenever my little one saw it and wanted to show me that she learned balance (on the metal one), she would fall when she tried because the wooden one had become a mess.