5 vibrations speeds and 5 functions4 unique attachmentsBody-safe siliconeWaterproofPhthalate freeRoHS compliantMaterials: Silicone ABS bulletSize: Bullet Length ? 2.375 Buttplug Length ? 4.25 Dual Bulb Plug Length ? 4.25 Tri-Bulb Plug Length ? 5.5 Five Bulb Plug Length ? 7Rechargeable bullet ? no batteries necessaryCharging time: 2 hoursUse time: 40 minutes