Product Rating: 5 Stars - So good I can't wait to use it again! | Power Rating: Doesn't apply - I'm not reviewing a powered product. | Noise Rating: Inaudible - Almost silent. | Texture and material construction: The girdle is made out of silky, body-safe silicone, and the beads are a hard, non-porous ABS plastic. This is not compatible with silicone-based lube; use water-based lube instead. The LUNA system can be quickly disassembled and washed with antibacterial soap and warm water. | Review Details: While I have no idea if the LUNA beads are strengthening my kegel muscles, I do know that they feel wonderful to wear. At 1.4 inches in diameter, these beads are girthy enough to feel when I flex my kegels, but they're slim enough that I don't notice the girth otherwise. The weighted balls that roll around inside the beads are supposed to be a reminder to flex those kegels. For me, these gentle vibes are the selling point of this system: They're surprisingly pleasurable, yet they're unobtrusive enough that I can go about my daily business without getting distracted. The pink beads, weighing in at 28 grams per ball, offer slightly less sensation than the blue beads, which weigh 37 grams per ball. I haven't had trouble inserting the two-bead system, but some women might. It might take some finagling to get these into a comfortable position. A little water-based lube will help, though, and if you're pretend you're trying to position an oddly-shaped tampon, you'll figure it out in a hurry. Five stars for a beautifully made toy that feels great and, as a nice bonus, comes gorgeously packaged with both a storage box and a storage pouch.