The Stainless Mug features a plastic cover around the mouth for a more comfortable feel. The vacuum insulation provides excellent heat and cold retention. • Easy-to-clean nonstick interior • Stopper disassembles for thorough cleaning • Wide mouth accommodates full size ice cubes • SLiT design (Slim, Light and Thin) • Made of BPA-free plastic and stainless steel • Size (width x depth x height): 6.5cm x 6.5cm x 17.0cm • Heat retention: 66°C @ 6hrs • Cold retention: 10°C @ 6hrs • Buying Link: https://www.zojimall.com/ (https://www.zojimall.com/zojirushi-360ml-s-s-twist-open-mug-sm-jf-36)