Lelo luna beads kegel ballspelvic floor excercise has never been so easy or effective.a stronger pelvic floor can give you enhanced sensations during sexual activity and more intense orgasms as well as help with slight incontinence issues. The lelo luna bead system gives you two sets of two beads, each differently weighted, allowing you to build up your resistance over time. Pop them inside and hold them in. Not only is daily excercise beneficial, the feeling of them knocking together is also pleasureable.made with fda approved and phthalate free abs silicone.includes 2 x 28 gram g luna beads. 2 x 37 gram g luna beadspresented in an elegant box with a satin carry pouch to keep your beads with you at all times.please note these beads are 36mm in diameter. For those who have not experienced child birth or who would prefer smaller sized beads, there are also lelo luna beads mini available.check out our full range of luxurious lelo products here or browse our designer vibes category for other stylish pleasure products.