Meet the LELO Smart Bead™, your very own personal pleasure trainer! With touch-sensors that respond to your every squeeze, the LELO Smart Bead™ measures your orgasm-potential and sets a routine that’s right for you. Progress through its 5 vibration-guided levels and you’ll be enjoying longer and stronger orgasms in no time.Features:Longer, stronger orgasms can be used for foreplay or be used over time to strengthen orgasm intensityBody safe FDA approved materials phthalate-free silicone and ABSDifferent combinations, each set comes with four interchangeable beads, with two different weights for variable sensationsTailored pleasure mini and classic sizes (classic are generally preferred by women who’ve given birth)1-year LELO warranty manufacturing quality guaranteed