1, you must use a new set every time you have sex; When you use it for the first time, you can choose a medium size (33 mm in diameter). If it doesn't fit, you can change it to a larger size or a smaller size.

2. Before using condoms, be sure to check the effective use date on the package;

Once the condom is opened, it should be used in time. Never save it for later use. Because once the thin latex film is exposed to air, sunlight or warmth, its strength will be greatly weakened.

4. Before tearing the package, gently squeeze the condom to one side to avoid damaging the condom when tearing the package; Attention should also be paid to avoid the damage of nails or rings to the latex film during use;

5. Before use, pinch the small air bag at the top of the condom to exhaust air. This bag is used to store semen, not on the penis head;

6. Put the rolled condom on the erect penis head, push the condom to the penis root gradually, and then have sex.

7. Before after ejaculation's penis is weak (before the penis is completely weak), hold the condom at the root of the penis and pull out the penis.

8. Pay attention to check whether semen is in the condom after sexual intercourse. If there is no leakage, it proves that this contraception is successful.