There quality and the security are also one of our main concerns. We have taken the appropriate time during our design and development phases to pay attention to all security issues. And this by choosing the use of non-toxic materials or of untreated solid wood And not spring. Please note that the Stix collection has passed all tests related to the safety of children's toys (European Directive 2009/48/EC relating to the safety of toys, Standards and regulations EN71 Safety of toys).