8-8 Stainless steel, Polypropylene, Silicone BPA Free. Keep drinks hot (69℃/156℉) for 6 hours. Keep drinks cold (7℃/45℉) for 6 hours. For maximum insulation efficiency, preheat or pre-cool the tumbler prior to use by filling in a bit of hot/cold water for 1-2 mins. This is a tumbler for beverage.
φ2.9 x H7.9 in / 17 oz