Stainless Steel Heating Tube: It Is Made Of High Quality Stainless Steel Heating Tube, High Hardness, High Rust Resistance And Good Heat Resistance. If You Need To More Different Types And Wattage, Check Them Out Hope It Helps You Find The One You Need: B07Yx3Ptbp (220V 1800W) B07Yx2Rww3 (220V 2000W) B07Yx3Fsfc (220V 2500W) W, Combined With High Quality Stainless Steel Heating Tube, Can Heat Up Quickly, Quickly Increase The Water Temperature,Heating Only Takes 1-2 Minutes.It Is Important To Note That After Unplugging, It Takes About 20 Seconds To Remove The Immersion Heater. Easy To Use: This Water Heater Is Easy To Use And Has A Clip Next To The Tube That You Can Clip To The Wall Of The Tumbler Or Other Container To Secure It. High Quality Power Cord: Immersion Heater Has A One Meter Long Power Cord. The Power Cord Is Made Of High Quality Copper Wire Material. It Is Wrapped With Pvc Insulation Material. It Resists High Temperatures And Oxidation. You Can Use It With Confidence. Small Size And Easy To Carry: Heating Element Is Medium In Size And Ideal For Heating Water Or Coffee In Cups Or Pitchers For Home, Office, Business Dormitory Or Travel. If There Is No Adapter In Your Package That Can Access The Ground Wire, Please Contact Our Customer Service And We Will Send You An Adapter That Can Be Connected To The Ground.