Function: Vibration
Motor: 2
Material: Medical Grade Silicone
Color: Black
Vibration: Multiple Speeds
Remote Control: Yes
Battery: Rechargeable
Recharging Method: USB Port 
Diameter :  7.5 CM ( 3.0'' )
 
Packing List:
1 x Ring
1 x Remote Controller
1 x USB Recharging Cable
1 x Instruction