Relevant topic analysis on Ben wa balls:

#SexIsSocial - The Kegel Journals!
Y'all ready to find out who's participating in The Kegel Journals?First, we want to thank everyone who volunteered. We were really happy to see how...

Kegel muscles and Ben Wa balls questions...
Ive been doing some research on how to intensify your orgasms and i ran across ben wa balls. Im not entirely sure how they work or if they will even..

Best ball gag for a beginner?
what's the best kind of ball gag for someone who's never used one?

Ball point pens or fine point?
My mom won't use anything but fine point, I find it a little ridiculous. I have like 500 ball point pens laying around, I just love them. Which do you

Roleplaying with Ball Gag
What kind of games and situations do you guys indulge in when you incorporate your ball gags. We usually tend to go for master/slave games or tease...

According to Topco's product page, "Vibe and balls are waterproof and phthalate free" link

Beyond that, I can't find any information about what they're made of, either. Try contacting the Admin or even Topco for more information about materials. Looking forward to that review!

From seeing them in local toy shops, they look like a rubber-based material.

Use Eden Link and ask a question of either Desiree or Tera, both have been great at questions.