OVERDRIVE rechargeable ring plus has been improved with a more powerful motor and sleeker, sexier design. Now boasting 10 super charged vibration modes, this badboy will make all lovers crave your stick shift. The silky smooth silicone and uniquely curved tip, not only feels great, but fits perfectly against all erogenous zones. So get behind the wheel, lift up your hood and take overdrive out for ride. Travel Lock. Splashproof, suitable for shower. Rechargeable: USB included. Run time : 45 minutes PRODUCT MEASUREMENTS height: 8.3cm inner diameter: 3.2cm. Travel lock feature with manual in box. One year warranty.