Check the teething ring before each use. Discard at the first sign of wear or damage. The teething ring contains small parts. Always use under adult supervision. Discard at the first sign of wear or damage. The teething rings are double strung and fitted with two safety buttons, both tightened with a tool. Wooden beads are untreated and naturally antibacterial, but can be treated with natural oil and/or wax to extend their life. Hand wash only with lukewarm water and/or damp cloth. The silicone beads can be cleaned with a damp cloth. Certification: free of substances that can harm health and the environment and handmade in Belgium according to European standard EN71, with a CE mark. In accordance with Directive 2009/48/EC on toy safety.