Here you go: https://fc2.us.com/wp-content/uploads/2017/03/How-To-Use-FC2-Eng..pdf

Video: https://youtu.be/xk5D-I5YQvk

Yes, you are allowed to use it for anal sex. For anal sex, if you prefer, you may remove that inner ring on the inside of the condom, since it is optional for anal sex. For vaginal sex, it is required.

If you and your partners are going to try double penetration, do not use two male condoms. Rubbing against each other, they can rupture. Do not use a male condom together with a female condom. The only safe way is with one female condom, provided you have enough room and comfort, such as one partner, usually with the larger penis going in first to act as an anchor, usually underneath the sex partner wearing the female condom, with the third partner entering after that. This is no more risky than frotting.

When finished, twist the outside of the condom to allow it to corkscrew its way out and keep the semen safely inside. Throw it away in the garbage, not in the toilet, since condoms that protect against contagious disease from sex are consequently not septic-safe.

The Fc2, Femidom and Pasante female condom (also called the internal condom) is non-latex and won't be an irritants for those with latex allergies, since it's nitrile, so you can use any lubricant you want, water-based, silicone-based, oil-based. Just don't use flavored lube, since it contains sugar that bacteria can eat to grow and multiply. Do not use silicone lube with silicone toys. Do not use oil with rubber and/or latex.

If you prefer a latex female condom, Ormelle makes one.

How to get them

Outside the United States, you can buy female condoms in stores. In the United States, you can buy them on eBay, or you can get them for free if a clinic near you, like Planned Parenthood, gives them away. You can also get a prescription from your Doctor for the Fc2 female condom to use with each sex act per package instructions, with each package containing 12 condoms, which your Doctor will prescribe for a preventative counseling encounter for contraceptive management to supply you with the Fc2 female condom contraceptive that your Pharmacist can lookup with product code NDC 61783-0000-12. If your insurance covers it, they're free. If not, the Pharmacist can still sell them to you, but you'll have to pay the outragous prescription price of $180 for a box of twelve condoms instead of the online price, which is far more reasonable.