Those Seams!I think these balls would be a lot better without their terrible seams. I wouldn't recommend them for this reason.
These tiny balls are made of plastic. The plastic is non-porous and free of latex and phthalates. They feel smooth until you feel the seams! Each ball has a terrible seam around the entire ball. This seam is raised and sharp! I find it very uncomfortable when inside me.
As the balls aren't in a casing and have no retrieval cord; you must fish them out yourself. This can be a pain in the ass because they like to swim around inside. During their wear, as long I have them positioned just right...they are comfortable. If they aren't positioned just right...I feel very uncomfortable.
I can't tell if they actually help with my kegel exercises. I don't believe so, because I can't wear them long. I prefer to take my Luna Noir beads out of the casing and use them as ben wa balls.
Cleaning these is a breeze because they can just be rinsed after you wipe them down with a toy cleaner. Keeping them can be hard as they are so tiny. Think of the size of a die. You definitely need a carrying case or pouch for them. Otherwise they will get lost.
The best part about these is how quiet they are. No one will ever know that you are wearing them as you are standing next to them in the checkout line. You can feel the internal balls roll around when you bend and jump. But not when you don't move too much.
I would not purchase these again. I think there must be better options out there than these. They are okay at best.