Harmony Duo App-Controlled Rechargeable Silicone Strapless Strap-OnHARMONY DUO is a strap on game changer. This strapless strap ons shorter, contoured pleasing shaft is held in place by the wearers pelvic floor muscles, while the G spot targeting head fits securely and pleasurably in the vaginal canal. The narrow neck makes it easy to squeeze, and enjoy. At the opposite end, a unique hollowed shaft reaches deep into your lovers sensitive zones while a tapping finger targets the G spot or prostate to double the fun!