Hoffmans 2.5Litres Electric Tea Kettles for Boiling Water Stainless Steel Double Wall Hot Water Boiler with Automatic Shut Off & Boil-Dry Protection, BPA Free UPGRADED DOUBLE-WALL DESIGN: Say goodbye to the traditional single-wall plastic kettle. The upgraded double-wall design with stainless steel inner and outer shell keeps water warm longer and makes the surface of the kettle body safe to touch