DUO condoms are designed to ensure comfort, protection and enjoyment and are manufactured to the highest international standard. For your confidence each condom is electronically tested for added quality assurance. Α condom is for a single use only. If re-use there may be an icreased risk of failure οr infection. Stor in a cool, dry place away from sunlight. If you are using a latex condom, don't use oil based  lubrications such as skin lotions, baby oil, vaseline as these products weakens the latex. Always use water based or latex compatible lubricants. Consult a doctor or a pharmacist if you or your parthner is using prescription that is applied to the penis or vagina. In case of allergy reaction, condoms should only should be used after consulting a doctor. No contraceptive can guarantee 100%  protetion against pregancy and sexually transmitted diseases.