Primula Peak Hot or Cold Thermal Tumbler, Black, 20 fl oz, NWT Stainless steel with twisted texture for a firm grip Flip top (screw) clear lid with silicone seal is straw compatible and leakproof Double wall vacuum sealed Triple-layer copper technology Keeps liquids hot for up to 8 hours and cold for up to 24 hours BPA free Approximate measurements: 3.5" Mouth diameter 2.625" Bottom diameter 7" Height Not 🚫 dishwasher safe; Hand wash only 🎉Host Pick🎉 by @verukasvault