Sleek simplicity with a touch of sophistication. 240ml (8oz) Ceramic Inner Coating with Measuring Details Interchangeable, BPA Free Lid Design (1.7cm) Stainless Steel Outer Wall (10.1cm) Not dishwasher safe – hand washing is recommended. Keeps beverages hot or cold for up to 4 hours (depending on usage) Convenient lid for sipping, leak-proof