Keep your coffee hot and your iced tea cool for over 10 hours with this 500ml double-walled vacuum-insulated thermal mug. The 20oz mug features a shatterproof transparent lid with a simple slide-open design, making it the ideal companion for busy individuals. Enjoy your favorite beverage anytime, anywhere! Material: 304 food-grade stainless steel (interior & exterior) Capacity: 500 ml (20 oz) Lid: Clear, shatterproof, slide-open with push-pull sipping cover Design: Spiral body, silicone ring for temperature retention Colors: Black and grey powder finish Size: 17.5 cm (height) x 8.5 cm (lid).