Touch rings are great for your baby's first early-exploratory adventures. They are tested in Heimess's own lab and regularly by independent, certified testing institutes for their resilience, chemical residues and safety. This is confirmed by the GS mark. Heimess dummy chains are manufactured in Germany in accordance with the European safety standards EN 12586:2007 and EN 71-1:2005. Please note: Heimess toys are made of a high quality, natural material. They can be cleaned with warm water. They should not be disinfected using caustic materials. As a natural product, wood itself has an antibacterial effect. Babies can put Heimess toys in thier mouths without the slightest risk. Like any other toys, wooden toys also wear down – their safety is not impaired by colour abrasion.