Use this bullet with a water-based lube. Clean it with a damp cloth and antibacterial soap or sex toy cleaner.
 
Material: ABS
Color: Black
Vibration: 7 Speeds
Battery: Rechargeable
Recharging Method: USB Port
Length: 9 ( 3.5'')
Diameter: 2.7 CM ( 1.1'' )
Waterproof: Yes