The Stainless Mug features a lightweight design for added portability. The tight fitted flip-open lid with a safety lock makes drinking from the mug easy and prevents beverages from spilling. • Stainless steel vacuum insulation keeps beverages hot or cold for hours • SLiT design (Slim, Light and Thin) • Non-stick coating • Safety lock prevents accidentally spilling • Stopper disassembles for thorough cleaning • Air vent design on the opening allows for beverages to flow out smoothly • Made of BPA-free plastic and stainless steel • Size (width x depth x height): 6.5cm x 6.5cm x 25.0cm • Heat retention: 73°C @ 6hrs • Cold retention: 8°C @ 6hrs • Buying Link : https://www.zojimall.com/s-steel-vaccum-mugs/zojirushi-600ml-s-s-one-touch-mug-sm-sr-60e