Please tell me about the safety and hygiene of the TENGA Cup series?

Due to the fact that the TENGA Cup series are designed with the premise that a man should insert without a condom, we have taken extra precautions in concerns to hygiene and safety.
For safety reasons we have not included any harmful materials in our products such as vinyl chloride, etc. We have also taken into consideration the safety of our lotions for your security and peace of mind.