TOYBOX Sonic Blue, a silicone, one size stretchable, usb rechargeable vibrating ring. Ergonomically designed, intended to pleasure at the same time both partners during sex. The vibration ring actually has 2 uses - - One - when the ring sits at the base of the penis, it intensifies the pleasure, strengthens the erection and delays the man's ejaculation. - The second - the upper part has a powerful vibration motor, plus a small silicone brush texture, which during penetration touches the woman's clitoris and gives additional stimulation and pleasure.