This is promotional Smart Chipkoo Mug (Spill Proof Mug). Capacity : 450 ml (approx.). Three Colour available (Blue / Red / Black) Vacuum Grip Mechanism Won’t Fall over, but lift like any mug. Inner Material : 304 Stainless Steel – Outer Material : Plastic – Spill proof LID. – CAR cup holder friendly – Dishwasher Safe