"Heats up to 42° Celsius / 107° Fahrenheit Power button located on the bottom of the hot plug 3 function Waterproof Phthalates free RoHS compliant Material: 100% silicone Buttplug Size: Length-6.375”, Width-1.75”,Circumference-5.625” Rechargeable Charging Time: 2hrs. Working Time: 2 hrs."