Your basic luna bead system consists of a silicone composition girdle and four weighted beads. the weight of each bead is identified by its lucent colour two pink 28gram beads one foundation bead with a retractable leash and one crown bead two powder blue 37-gram beads one foundation bead with a retractable leash and one crown bead the luna bead system is a combined pleasure exercise system for the circum vaginal and pelvic floor muscles. by marrying incremental resistance with movement inducing subtle kinetic vibe, luna beads facilitate more efficient and pleasurable kegel-exercising.